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  1. 1. Project Report Multi-Password Management System__________________________________________________________________ A PROJECT REPORT On ONLINE MISSING VEHICLES TRACKING APPLICATION FOR POLICE DEPARTMENT Submitted in partial fulfillment of the requirements for the award of the Degree of MASTER OF COMPUTER APPLICATIONS By P.SURESH (08P11F0033) Under the guidance of Sri. P. KRISHNA CHAITHANYA , Assistant Professor, Dept of MCA. ._________________________________________________________________________________ 1JB INSTITUTE OF COMPUTER TECHNOLOGY
  2. 2. Project Report Multi-Password Management System__________________________________________________________________ DEPARTMENT OF MASTER OF COMPUTER APPLICATIONSCHADALAWADA RAMANAMMA ENGINEERING COLLEGE (AFFILIATED TO JNTU, ANANTAPUR) CHADALAWADA NAGAR, RENIGUNTA ROAD, TIRUPATHI-517 506 CHITTOOR (Dt), A.P, INDIA 2008-2011_________________________________________________________________________________ 2JB INSTITUTE OF COMPUTER TECHNOLOGY
  3. 3. Project Report Multi-Password Management System__________________________________________________________________ DEPARTMENT OF MASTER OF COMPUTER APPLICATIONS CHADALAWADA RAMANAMMA ENGINEERING COLLEGE TIRUPATHI – 517 506 CERTIFICATE This is to certify that the project work entitled “MISSING PERSON APPLICATION ” done byMr.P.SURESH, bearing hall ticket no. 08P11F0033 is a bonafied report work carried by him in partialfulfillment for the award of the degree in Master of Computer Applications from ChadalawadaRamanamma Engineeering College, Tirupathi during the period 2008-2011 under our supervision andguidance.HEAD OF THE DEPARTMENT: INTERNAL GUIDE:_________________________________________________________________________________ 3JB INSTITUTE OF COMPUTER TECHNOLOGY
  4. 4. Project Report Multi-Password Management System__________________________________________________________________Smt. B.GEETHA VANI, Sri. P .KRISHNA CHAITHANYA,Professor, Assistant Professor,Dept of MCA, Dept of MCA,C.R. Engineering College, C.R. Engineering College,Tirupati - 517 506. Tirupati- 517 506.Submitted for the viva-voce conducted on ________________INTERNAL EXAMINER EXTERNAL EXAMINER ACKNOWLEDGEMENT I express my deep sense of gratitude to our beloved correspondent Dr.C.Sucharitha, for herencouragement throughout the course. I owe my gratitude to Principal Prof. *****************, for assisting us in the development ofthe system, the personal interest he provided and unending supply of encouragement that sustained usthroughout the project._________________________________________________________________________________ 4JB INSTITUTE OF COMPUTER TECHNOLOGY
  5. 5. Project Report Multi-Password Management System__________________________________________________________________ I am extremely thankful to Prof. B. GeethaVani, M. Tech., (Ph.D)., Head of the Department ofMaster of Computer Applications for all provisions made and for her constant encouragementthroughout the work. I am thankful to my guide Sri.P.KRISHNACHAITHANYA, MCA Department of Master of ComputerApplications for his guidance and cooperation. I am very grateful to Mr. MOHAN, project leader for providing me an opportunity to work intheir esteemed organization for his inspiring and expert guidance throughout the tenure of this work. I also thankful to all staff members of Department of MCA for helping to complete this projectwork by giving valuable suggestions. All of the above I gratefully acknowledge and express my thanks to my parents who have beeninstrumental for success of this project play a vital role. The last but not least, I express my sincere thanks to all my friends who have supported me inaccomplishment of this project._________________________________________________________________________________ 5JB INSTITUTE OF COMPUTER TECHNOLOGY
  6. 6. Project Report Multi-Password Management System__________________________________________________________________ ABSTRACT ONLINE MISSING VEHICLES TRACKING APPLICATION FOR POLICE DEPARTMENT Thousands of automobiles are lost each year in the state and thousands of automobiles are alsorecovered by the Police from when they catch the culprits or even when the culprits leave the vehiclesthey have stolen after they have used them. The usual problem with the recovered vehicles reaching theactual owners is that the vehicle need not be found in the same jurisdiction as one in which the complaintwas launched. So, when a vehicle is recovered, usually the Police try to trace out the actual owner of thevehicle from the RTO based on the license and chasis number. But this is a lengthy and time consumingprocess for the RTO to trace out the actual owners from the records and inform back to the Policestations. Because of these delays, vehicles that are recovered also take a long time to actually reach theirowners. There is a need for a centralized SMS based application for the police department to querythe details of the vehicle recovered by sending out an SMS. This application should allow usersto capture the details of the stolen vehicles, along with the owner details and FIR details, so thatwhen someone queries for this vehicle when found, based on the chasis number, they get theinformation about the actual owner as well as the Police station in which the complaint waslaunched.The same application can also be used by the general public while buying second hand vehiclesto check if they are stolen property. This application can also be used to check the details of anysuspicious unattended vehicles, thus encouraging the public participation in recovering the stolenvehicles._________________________________________________________________________________ 6JB INSTITUTE OF COMPUTER TECHNOLOGY
  7. 7. Project Report Multi-Password Management System___________________________________________________________________________________________________________________________________________________ 7JB INSTITUTE OF COMPUTER TECHNOLOGY
  9. 9. Project Report Multi-Password Management System__________________________________________________________________ 4. SELECTED SOFTWARE 4.1. INTRODUCTION TO JAVA 4.2. HYPERTEXT MARK-UP LANGUAGE 4.3. JAVA SCRIPT 4.4. JDBC 4.5 JAVA SERVER PAGES (JSP) 5. SYSTEM DESIGN 5.1 INTRODUCTION 5.2 UML DIAGRAM 5.2.1 DATA FLOW DIAGRAMS 5.2.2 E-R DIAGRAMS 5.2.3 USE CASE DIAGRAMS 5.2.4 SEQUENCE DIAGRAMS 5.2.5 CLASS DIAGRAMS 5.2.6 DATA DICTIONARY 5.2.7 DATABASE TABLES 6. TESTING SCREENSSYSTEM SECURITY CONCLUSION BIBLIOGRAPHY_________________________________________________________________________________ 9JB INSTITUTE OF COMPUTER TECHNOLOGY
  10. 10. Project Report Multi-Password Management System__________________________________________________________________ CHAPTER-1 INTRODUCTION_________________________________________________________________________________ 10JB INSTITUTE OF COMPUTER TECHNOLOGY
  11. 11. Project Report Multi-Password Management System__________________________________________________________________1.1 INTRODUCTION TO PROJECT The main purpose of this project is to save the many number of passwords in encryptionform so that they can’t be retrieved by others. . This application not only allows the passwords tobe saved in the centralized database in an encrypted format but can also return the passwordwhen requested in a simple encryption format as well, so that it cannot be misused by others._________________________________________________________________________________ 11JB INSTITUTE OF COMPUTER TECHNOLOGY
  12. 12. Project Report Multi-Password Management System__________________________________________________________________1.2 ORGANIZATION PROFILE Beyond Basiks is committed to understand our customers business, operational andnetwork challenges. Our world-class innovators, software developers and consultants developcreative solutions to meet changing customer needs - delivering them faster and moreresponsively than ever. Basiks leadership team brings together experience across the global industry. BeyondBasiks is dedicated to help customers creatively use technology to meet their business objectives: * Streamline operations. * Advance network flexibility. * Add new services to grow revenues. * Significantly reduce operating and capital expenditures. * Increase profits. The companys reputation is based on the breadth and depth of its expertise across thetechnology spectrum. Basiks mission is to develop cutting edge information managementsolutions that enable professionals and enterprises to maximize their information assets andbecome more efficient and proactive in their constantly evolving business environment.Integrating the advanced technologies that have come to typify our company, our solutionsenable professionals and businesses to become more competitive in an information world that isconstantly changing. At Beyond Basiks ,Company believe that effective development requires a mixture ofmarketing flair, media analysis and technical expertise. Company’s Internet solutions are drivenby one key concept - " BUSINESS LOGIC. " Company’s aim is simple : To maximize the return on your investment by promotingincreased sales of your products and reducing your business costs. As an experienced company ,Beyond Basiks provides comprehensive solutions to the corporate and beyond._________________________________________________________________________________ 12JB INSTITUTE OF COMPUTER TECHNOLOGY
  13. 13. Project Report Multi-Password Management System__________________________________________________________________BASIKS SPECIALIZE IN THE FOLLOWING:COMPUTER TELEPHONY INTEGRATION Right now, a number of businesses from a large variety of industries are running theircontact centers on our advanced call handling software. Company provide complete turnkeysolutions to companies with systems currently operating at many places. Interactive voiceresponse (IVR) is what powers telephone banking, movie phone, and other automated services.CLIENT SERVER TECHNOLOGIES Client / Server technology is the computer architecture used in almost all the automatedsystems now being offered. Company bring you many years of computer and network expertisetogether to form a client-oriented consulting company.INTERNET TECHNOLOGIES Beyond Basiks provides community and content application solutions for the Internet.Static pages have been replaced by dynamic community and content management applications inrecent years. Adding intelligence and interactivity to a community or a business web site becameour main focus. Software Job School is a unique finishing school established to bridge the gapbetween educational qualification and employability of IT Job aspirants. One of our programsinvolves collaborating with various companies in the Industry to facilitate Final Semisterstudents to work in live projects to get a real-time exposure of the IT Industry. We realize thatthis would go a long way in helping out the students in building their careers. In fact, the finalsemister project stays on a students resume for at least two years and is an important area ofdiscussion in all their job interviews. The Vision of Software Job School is to do its part inproviding a bigger and qualified Entry Level Talent Pool , much needed by the IT Industry, sothat corporates can cut down their entry level training costs effectively, without the normal life-cycle getting affected. The mission is to achieve this by offering a Comprehensive TrainingProgram spanning across the Industry requirements to include People Skills, Process Orientationand Technology Know-How and to transform an under-graduate/graduate IT Job aspirant into anIT-Ready Professional._________________________________________________________________________________ 13JB INSTITUTE OF COMPUTER TECHNOLOGY
  14. 14. Project Report Multi-Password Management System__________________________________________________________________ ORGANIZATION CHART General Manager Assistant Manager Assistant Manager Assistant Manager Branch Manager Branch Manager Project Team Leaders Project Team Leaders Project Team Members Project Team Members_________________________________________________________________________________ 14JB INSTITUTE OF COMPUTER TECHNOLOGY
  15. 15. Project Report Multi-Password Management System__________________________________________________________________1.3 PURPOSE OF THE PROJECT The main purpose of the project is to develop an application called Online PasswordEncryption. With increase in the usage of Internet and ATM, even common citizens who are notcomputer savvy are having to maintain a number of accounts and related passwords to go aheadwith their day-to-day activities. These accounts could range from email accounts, socialnetworking accounts, on-shopping accounts, bank accounts, on-line stocks trading accounts,credit card accounts and many others. One issue with maintaining all these accounts is that onehas to remember a number of passwords. Quite a few people, unknowingly, either have the samepassword for all the accounts or write down all the passwords on a piece of paper and carry withthem or have passwords that are very easy to remember that can be guessed easily by others, allof which are very risky and may lead to misuse of accounts, data loss or even financial loss.There is no proper way for a common person to save all these passwords securely and retrievethem when required._________________________________________________________________________________ 15JB INSTITUTE OF COMPUTER TECHNOLOGY
  16. 16. Project Report Multi-Password Management System__________________________________________________________________2.1 SYSTEM DETAILS After analyzing the requirements of the task to be performed, the next step is to analyzethe problem and understand its context. The first activity in the phase is studying the existingsystem and other is to understand the requirements and domain of the new system. Both theactivities are equally important, but the first activity serves as a basis of giving the functionalspecifications and then successful design of the proposed system. Understanding the propertiesand requirements of a new system is more difficult and requires creative thinking andunderstanding of existing running system is also difficult, improper understanding of presentsystem can lead diversion from solution._________________________________________________________________________________ 16JB INSTITUTE OF COMPUTER TECHNOLOGY
  17. 17. Project Report Multi-Password Management System__________________________________________________________________2.2EXISTING SYSTEMWith increase in the usage of Internet and ATM, even common citizens who are not computersavvy are having to maintain a number of accounts and related passwords to go ahead with theirday-to-day activities. These accounts could range from email accounts, social networkingaccounts, on-shopping accounts, bank accounts, on-line stocks trading accounts, credit cardaccounts and many others. One issue with maintaining all these accounts is that one has toremember a number of passwords.Quite a few people, unknowingly, either have the same password for all the accounts or writedown all the passwords on a piece of paper and carry with them or have passwords that are veryeasy to remember that can be guessed easily by others, all of which are very risky and may leadto misuse of accounts, data loss or even financial loss. There is no proper way for a commonperson to save all these passwords securely and retrieve them when required._________________________________________________________________________________ 17JB INSTITUTE OF COMPUTER TECHNOLOGY
  18. 18. Project Report Multi-Password Management System__________________________________________________________________2.3 PROPOSED SYSTEM There is a need for a centralized web based application to allow users to save all theirpasswords in a secured and encrypted format on the Internet so that they can be retrieved. Thisapplication not only allows the passwords to be saved in the centralized database in an encryptedformat but can also return the password when requested in a simple encryption format as well, sothat it cannot be misused by others . The way it works is: Users register along with their mobile number They save all their passwords in an encrypted form If required even the password sent out could be encryptedPROCESSES INVOLVED · Access Management process for User registration · User Account and Password details setup and maintenance Process_________________________________________________________________________________ 18JB INSTITUTE OF COMPUTER TECHNOLOGY
  19. 19. Project Report Multi-Password Management System__________________________________________________________________ · Password encryption process during setup and retrieval · Transaction logging and reporting process · Data Archive and cleanup processMODULES INVOLVED · Access management Module: This module is used by users to register to the web application. · User Accounts setup and maintenance Module: This module allows the users to setup their various account details and respective passwords in an encrypted format. · Archiving and cleanup Module: Allows Admin users to Archive/Cleanup old data on the systemADVANTAGES The project is identified by the merits of the system offered to the user. The merits of thisproject are as follows 1. This module is used by users to register to the web application._________________________________________________________________________________ 19JB INSTITUTE OF COMPUTER TECHNOLOGY
  20. 20. Project Report Multi-Password Management System__________________________________________________________________ . 2. This module allows the users to setup their various account details and respective passwords in an encrypted format.2.4. FEASIBILITY STUDY Preliminary investigation examine project feasibility, the likelihood the system will beuseful to the organization. The main objective of the feasibility study is to test the Technical,Operational and Economical feasibility for adding new modules and debugging old runningsystem. All system is feasible if they are unlimited resources and infinite time. There are aspectsin the feasibility study portion of the preliminary investigation:Technical FeasibilityOperation FeasibilityEconomical Feasibility2.4.1 TECHNICAL FEASIBILITY The technical issue usually raised during the feasibility stage of the investigation includesthe following: 1. Does the necessary technology exist to do what is suggested? 2. Do the proposed equipments have the technical capacity to hold the data required to use_________________________________________________________________________________ 20JB INSTITUTE OF COMPUTER TECHNOLOGY
  21. 21. Project Report Multi-Password Management System__________________________________________________________________ the new system? 3. Will the proposed system provide adequate response to inquiries, regardless of the number or location of users? 4. Can the system be upgraded if developed? 5. Are there technical guarantees of accuracy, reliability, ease of access and data security? Earlier no system existed to cater to the needs of ‘Secure Infrastructure ImplementationSystem’. The current system developed is technically feasible. It is a web based user interface foraudit workflow at NIC-CSD. Thus it provides an easy access to the users. The database’spurpose is to create, establish and maintain a workflow among various entities in order tofacilitate all concerned users in their various capacities or roles. Permission to the users would begranted based on the roles specified. Therefore, it provides the technical guarantee of accuracy,reliability and security. The software and hard requirements for the development of this projectare not many and are already available in-house at NIC or are available as free as open source.The work for the project is done with the current equipment and existing software technology.Necessary bandwidth exists for providing a fast feedback to the users irrespective of the numberof users using the system.2.4.2 OPERATIONAL FEASIBILITYProposed projects are beneficial only if they can be turned out into information system. Thatwill meet the organization’s operating requirements. Operational feasibility aspects of the project_________________________________________________________________________________ 21JB INSTITUTE OF COMPUTER TECHNOLOGY
  22. 22. Project Report Multi-Password Management System__________________________________________________________________are to be taken as an important part of the project implementation. Some of the important issuesraised are to test the operational feasibility of a project includes the following: - • Is there sufficient support for the management from the users? • Will the system be used and work properly if it is being developed and implemented? • Will there be any resistance from the user that will undermine the possible application benefits? This system is targeted to be in accordance with the above-mentioned issues. Beforehand,the management issues and user requirements have been taken into consideration. So there is noquestion of resistance from the users that can undermine the possible application benefits. The well-planned design would ensure the optimal utilization of the computer resourcesand would help in the improvement of performance status.2.4.3 ECONOMIC FEASIBILITY A system can be developed technically and that will be used if installed must still be agood investment for the organization. In the economical feasibility, the development cost increating the system is evaluated against the ultimate benefit derived from the new systems.Financial benefits must equal or exceed the costs. The system is economically feasible. It does not require any addition hardware orsoftware. Since the interface for this system is developed using the existing resources andtechnologies available at NIC, There is nominal expenditure and economical feasibility forcertain.2.5 ANALYSIS MODEL The model that is basically being followed is the SOFTWARE DEVELOPMENT LIFECYCLE MODEL, which states that the phases are organized in a linear order. First of all thefeasibility study is done. Once that part is over the requirement analysis and project planning_________________________________________________________________________________ 22JB INSTITUTE OF COMPUTER TECHNOLOGY
  23. 23. Project Report Multi-Password Management System__________________________________________________________________begins. If system exists one then modification and addition of new module is needed, analysis ofpresent system can be used as basic model. The design starts after the requirement analysis is complete and the coding begins afterthe design is complete. Once the programming is completed, the testing is done. In this modelthe sequence of activities performed in a software development project are: Project PlanningRequirements DefinitionDesignDevelopmentIntegration & TestInstallation & Acceptance The relationship of each stage to the others can be roughly described as aWaterfall, where the outputs from a specific stage serve as the initial inputs for thefollowing stage._________________________________________________________________________________ 23JB INSTITUTE OF COMPUTER TECHNOLOGY
  24. 24. Project Report Multi-Password Management System__________________________________________________________________3.1 INTRODUCTION: Software Requirements Specification plays an important role in creating quality softwaresolutions. Specification is basically a representation process. Requirements are represented in amanner that ultimately leads to successful software implementation.Requirements may be specified in a variety of ways. However there are some guidelines worthfollowing: -• Representation format and content should be relevant to the problem• Information contained within the specification should be nested• Diagrams and other notational forms should be restricted in number and consistent in use.• Representations should be revisable.The software requirements specification is produced at the culmination of the analysis task. Thefunction and performance allocated to the software as a part of system engineering are refined byestablishing a complete information description, a detailed functional and behavioral description,and indication of performance requirements andDesign constraints, appropriate validation criteria and other data pertinent to requirements._________________________________________________________________________________ 24JB INSTITUTE OF COMPUTER TECHNOLOGY
  25. 25. Project Report Multi-Password Management System__________________________________________________________________3.2 SYSTEM REQUIREMENTS Requirement Specification plays an important role to create quality software solution;Requirements are refined and analyzed to assess the clarity. Requirements are represented in a manner that ultimately leads to successful softwareimplementation. Each requirement must be consistent with the overall objective. Thedevelopment of this project deals with the following requirements: Hardware Requirements Software Requirements3.2.1 HARDWARE REQUIREMENTS: The selection of hardware is very important in the existence and proper working of anysoftware. In the selection of hardware, the size and the capacity requirements are also important. Content Description HDD 20 GB Min 40 GB Recommended RAM 1 GB Min_________________________________________________________________________________ 25JB INSTITUTE OF COMPUTER TECHNOLOGY
  26. 26. Project Report Multi-Password Management System__________________________________________________________________3.2.2 SOFTWARE REQUIREMENTS: The software requirements specification is produces at the culmination of the analysistasks. One of the most difficult tasks is that, the selection of the software, once systemrequirement is known by determining whether a particular software package fits therequirements. Content Description OS Windows XP with SP2 or Windows Vista Database MySQL Technologies Core Java, Advance Java, HTML,JSP, Servlet, XML IDE MyEclipse Browser Mozilla Firefox, IE 6., Google Chrome_________________________________________________________________________________ 26JB INSTITUTE OF COMPUTER TECHNOLOGY
  27. 27. Project Report Multi-Password Management System__________________________________________________________________4.1. INTRODUCTION TO JAVA Initially the language was called as “oak” but it was renamed as “Java” in 1995. Theprimary motivation of this language was the need for a platform-independent (i.e., architectureneutral) language that could be used to create software to be embedded in various consumerelectronic devices.Java is a programmer’s language.1 Java is cohesive and consistent.2 Except for those constraints imposed by the Internet environment, Java gives the programmer, full control.3 Finally, Java is to Internet programming where C was to system programming.IMPORTANCE OF JAVA TO THE INTERNETJava has had a profound effect on the Internet. This is because; Java expands the Universe ofobjects that can move about freely in Cyberspace. In a network, two categories of objects aretransmitted between the Server and the Personal computer. They are: Passive information andDynamic active programs. The Dynamic, Self-executing programs cause serious problems in theareas of Security and probability. But, Java addresses those concerns and by doing so, hasopened the door to an exciting new form of programJAVA CAN BE USED TO CREATE TWO TYPES OF PROGRAMSApplications and Applets: An application is a program that runs on our Computer under theoperating system of that computer. It is more or less like one creating using C or C++. Java’sability to create Applets makes it important. An Applet is an application designed to betransmitted over the Internet and executed by a Java –compatible web browser. An applet isactually a tiny Java program, dynamically downloaded across the network, just like an image.But the difference is, it is an intelligent program, not just a media file. It can react to the userinput and dynamically change._________________________________________________________________________________ 27JB INSTITUTE OF COMPUTER TECHNOLOGY
  28. 28. Project Report Multi-Password Management System__________________________________________________________________FEATURES OF JAVA SECURITYEvery time you that you download a “normal” program, you are risking a viral infection. Prior toJava, most users did not download executable programs frequently, and those who did scan themfor viruses prior to execution. Most users still worried about the possibility of infecting theirsystems with a virus. In addition, another type of malicious program exists that must be guardedagainst. This type of program can gather private information, such as credit card numbers, bankaccount balances, and passwords. Java answers both these concerns by providing a “firewall”between a network application and your computer. When you use a Java-compatible Webbrowser, you can safely download Java applets without fear of virus infection or maliciousintent.PORTABILITYFor programs to be dynamically downloaded to all the various types of platforms connected tothe Internet, some means of generating portable executable code is needed .As you will see, thesame mechanism that helps ensure security also helps create portability. Indeed, Java’s solutionto these two problems is both elegant and efficient.THE BYTE CODEThe key that allows the Java to solve the security and portability problems is that the output ofJava compiler is Byte code. Byte code is a highly optimized set of instructions designed to beexecuted by the Java run-time system, which is called the Java Virtual Machine (JVM). That is,in its standard form, the JVM is an interpreter for byte code. Translating a Java program into bytecode helps makes it much easier to run a program in a wide variety of environments. The reasonis, once the run-time package exists for a given system, any Java program can run on it.Although Java was designed for interpretation, there is technically nothing about Java thatprevents on-the-fly compilation of byte code into native code. Sun has just completed its Just InTime (JIT) compiler for byte code. When the JIT compiler is a part of JVM, it compiles bytecode into executable code in real time, on a piece-by-piece, demand basis. It is not possible tocompile an entire Java program into executable code all at once, because Java performs variousrun-time checks that can be done only at run time. The JIT compiles code, as it is needed, duringexecution._________________________________________________________________________________ 28JB INSTITUTE OF COMPUTER TECHNOLOGY
  29. 29. Project Report Multi-Password Management System__________________________________________________________________JAVA VIRTUAL MACHINE (JVM)Beyond the language, there is the Java virtual machine. The Java virtual machine is an importantelement of the Java technology. The virtual machine can be embedded within a web browser oran operating system. Once a piece of Java code is loaded onto a machine, it is verified. As part ofthe loading process, a class loader is invoked and does byte code verification makes sure that thecode that’s has been generated by the compiler will not corrupt the machine that it’s loaded on.Byte code verification takes place at the end of the compilation process to make sure that is allaccurate and correct. So byte code verification is integral to the compiling and executing of Javacode.OVERALL DESCRIPTION Java byte code Java Source .ClassPicture showing the development process of JAVA ProgramJava programming uses to produce byte codes and executes them. The first box indicates that theJava source code is located in a. Java file that is processed with a Java compiler called javac. TheJava compiler produces a file called a. class file, which contains the byte code. The Class file isthen loaded across the network or loaded locally on your machine into the executionenvironment is the Java virtual machine, which interprets and executes the byte code.JAVA ARCHITECTUREJava architecture provides a portable, robust, high performing environment for development.Java provides portability by compiling the byte codes for the Java Virtual Machine, which is theninterpreted on each platform by the run-time environment. Java is a dynamic system, able to loadcode when needed from a machine in the same room or across the planet._________________________________________________________________________________ 29JB INSTITUTE OF COMPUTER TECHNOLOGY
  30. 30. Project Report Multi-Password Management System__________________________________________________________________COMPILATION OF CODEWhen you compile the code, the Java compiler creates machine code (called byte code) for ahypothetical machine called Java Virtual Machine (JVM). The JVM is supposed to execute thebyte code. The JVM is created for overcoming the issue of portability. The code is written andcompiled for one machine and interpreted on all machines. This machine is called Java VirtualMachine. COMPILING AND INTERPRETING JAVA SOURCE CODE Source Code Java Java ……….. Java PC Compiler Interpreter ……….. Interpreter Byte code (PC) (Spare) Macintosh Java ……….. Compiler Interpreter (Macintosh) SPARC (Platform Compiler Indepen ………… dent)During run-time the Java interpreter tricks the byte code file into thinking that it is running on aJava Virtual Machine. In reality this could be a Intel Pentium Windows 95 or SunSARC stationrunning Solaris or Apple Macintosh running system and all could receive code from anycomputer through Internet and run the Applets._________________________________________________________________________________ 30JB INSTITUTE OF COMPUTER TECHNOLOGY
  31. 31. Project Report Multi-Password Management System__________________________________________________________________SIMPLEJava was designed to be easy for the Professional programmer to learn and to use effectively. Ifyou are an experienced C++ programmer, learning Java will be even easier. Because Javainherits the C/C++ syntax and many of the object oriented features of C++. Most of theconfusing concepts from C++ are either left out of Java or implemented in a cleaner, moreapproachable manner. In Java there are a small number of clearly defined ways to accomplish agiven task.OBJECT-ORIENTEDJava was not designed to be source-code compatible with any other language. This allowed theJava team the freedom to design with a blank slate. One outcome of this was a clean usable,pragmatic approach to objects. The object model in Java is simple and easy to extend, whilesimple types, such as integers, are kept as high-performance non-objects.ROBUSTThe multi-platform environment of the Web places extraordinary demands on a program,because the program must execute reliably in a variety of systems. The ability to create robustprograms was given a high priority in the design of Java. Java is strictly typed language; itchecks your code at compile time and run time.Java virtually eliminates the problems of memory management and deallocation, which iscompletely automatic. In a well-written Java program, all run time errors can –and should –bemanaged by your program._________________________________________________________________________________ 31JB INSTITUTE OF COMPUTER TECHNOLOGY
  32. 32. Project Report Multi-Password Management System__________________________________________________________________4.2. HYPER TEXT MARKUP LANGUAGEHypertext Markup Language (HTML), the languages of the World Wide Web (WWW), allowsusers to produces Web pages that include text, graphics and pointer to other Web pages(Hyperlinks).HTML is not a programming language but it is an application of ISO Standard 8879, SGML(Standard Generalized Markup Language), but specialized to hypertext and adapted to the Web.The idea behind Hypertext is that instead of reading text in rigid linear structure, we can easilyjump from one point to another point. We can navigate through the information based on ourinterest and preference. A markup language is simply a series of elements, each delimited withspecial characters that define how text or other items enclosed within the elements should bedisplayed. Hyperlinks are underlined or emphasized works that load to other documents or someportions of the same document.HTML can be used to display any type of document on the host computer, which can begeographically at a different location. It is a versatile language and can be used on any platformor desktop.HTML provides tags (special codes) to make the document look attractive. HTML tags are notcase-sensitive. Using graphics, fonts, different sizes, color, etc., can enhance the presentation ofthe document. Anything that is not a tag is part of the document itself.Basic HTML Tags:_________________________________________________________________________________ 32JB INSTITUTE OF COMPUTER TECHNOLOGY
  33. 33. Project Report Multi-Password Management System__________________________________________________________________<! -- --> Specifies comments<A>………. </A> Creates hypertext links<B>………. </B> Formats text as bold<BIG>………. </BIG> Formats text in large font.<BODY>…</BODY> Contains all tags and text in the HTML document<CENTER>...</CENTER> Creates text<DD>…</DD> Definition of a term<DL>...</DL> Creates definition list<FONT>…</FONT> Formats text with a particular font<FORM>...</FORM> Encloses a fill-out form<FRAME>...</FRAME> Defines a particular frame in a set of frames<H#>…</H#> Creates headings of different levels<HEAD>...</HEAD> Contains tags that specify information about a document<HR>...</HR> Creates a horizontal rule<HTML>…</HTML> Contains all other HTML tags<META>...</META> Provides meta-information about a document<SCRIPT>…</SCRIPT> Contains client-side or server-side script<TABLE>…</TABLE> Creates a table<TD>…</TD> Indicates table data in a table<TR>…</TR> Designates a table row<TH>…</TH> Creates a heading in a table_________________________________________________________________________________ 33JB INSTITUTE OF COMPUTER TECHNOLOGY
  34. 34. Project Report Multi-Password Management System__________________________________________________________________ ADVANTAGES • A HTML document is small and hence easy to send over the net. It is small because it does not include formatted information. • HTML is platform independent. • HTML tags are not case-sensitive.4.3. JAVASCRIPT JavaScript is a script-based programming language that was developed by NetscapeCommunication Corporation. JavaScript was originally called Live Script and renamed asJavaScript to indicate its relationship with Java. JavaScript supports the development of bothclient and server components of Web-based applications. On the client side, it can be used towrite programs that are executed by a Web browser within the context of a Web page. On theserver side, it can be used to write Web server programs that can process information submittedby a Web browser and then updates the browser’s display accordinglyEven though JavaScript supports both client and server Web programming, we prefer JavaScriptat Client side programming since most of the browsers supports it. JavaScript is almost as easy tolearn as HTML, and JavaScript statements can be included in HTML documents by enclosingthe statements between a pair of scripting tags <SCRIPTS>... </SCRIPT>. <SCRIPT LANGUAGE = “JavaScript”> JavaScript statements </SCRIPT>Here are a few things we can do with JavaScript: • Validate the contents of a form and make calculations. • Add scrolling or changing messages to the Browser’s status line. • Animate images or rotate images that change when we move the mouse over them._________________________________________________________________________________ 34JB INSTITUTE OF COMPUTER TECHNOLOGY
  35. 35. Project Report Multi-Password Management System __________________________________________________________________ • Detect the browser in use and display different content for different browsers. • Detect installed plug-ins and notify the user if a plug-in is required. We can do much more with JavaScript, including creating entire application. JavaScript Vs Java JavaScript and Java are entirely different languages. A few of the most glaring differences are: • Java applets are generally displayed in a box within the web document; JavaScript can affect any part of the Web document itself. • While JavaScript is best suited to simple applications and adding interactive features to Web pages; Java can be used for incredibly complex applications. There are many other differences but the important thing to remember is that JavaScript and Java are separate languages. They are both useful for different things; in fact they can be used together to combine their advantages. Advantages • JavaScript can be used for Sever-side and Client-side scripting. • It is more flexible than VBScript.• JavaScript is the default scripting languages at Client-side since all the browsers supports it. _________________________________________________________________________________ 35 JB INSTITUTE OF COMPUTER TECHNOLOGY
  36. 36. Project Report Multi-Password Management System__________________________________________________________________4.4. JDBC Java Database Connectivity or in short JDBC is a technology that enables the javaprogram to manipulate data stored into the database. Here is the complete tutorial on JDBCtechnology.What is JDBC? JDBC is Java application programming interface that allows the Java programmers toaccess database management system from Java code. It was developed by Java Soft, a subsidiaryof Sun Microsystems.JDBC has four Components:1. The JDBC API.2. The JDBC Driver Manager.3. The JDBC Test Suite.4. The JDBC-ODBC Bridge.The JDBC API._________________________________________________________________________________ 36JB INSTITUTE OF COMPUTER TECHNOLOGY
  37. 37. Project Report Multi-Password Management System__________________________________________________________________The JDBC application programming interface provides the facility for accessing the relationaldatabase from the Java programming language. The API technology provides the industrialstandard for independently connecting Java programming language and a wide range ofdatabases. The user not only execute the SQL statements, retrieve results, and update the data butcan also access it anywhere within a network because of its "Write Once, Run Anywhere"(WORA) capabilities.Due to JDBC API technology, user can also access other tabular data sources like spreadsheets orflat files even in the a heterogeneous environment. JDBC application programming interface isa part of the Java platform that has included Java Standard Edition (Java SE) and theJava Enterprise Edition (Java EE) in itself.The JDBC API has four main interface:The latest version of JDBC 4.0 application programming interface is divided into two packagesi-) java.sqlii-) javax.sql.Java SE and Java EE platforms are included in both the packages.2. THE JDBC DRIVER MANAGER. The JDBC Driver Manager is a very important class that defines objects which connectJava applications to a JDBC driver. Usually Driver Manager is the backbone of the JDBCarchitecture. Its very simple and small that is used to provide a means of managing the differenttypes of JDBC database driver running on an application. The main responsibility of JDBCdatabase driver is to load all the drivers found in the system properly as well as to select themost appropriate driver from opening a connection to a database. The Driver Manager alsohelps to select the most appropriate driver from the previously loaded drivers when a new opendatabase is connected.3. THE JDBC TEST SUITE._________________________________________________________________________________ 37JB INSTITUTE OF COMPUTER TECHNOLOGY
  38. 38. Project Report Multi-Password Management System__________________________________________________________________ The function of JDBC driver test suite is to make ensure that the JDBC drivers will runusers program or not . The test suite of JDBC application program interface is very useful fortesting a driver based on JDBC technology during testing period. It ensures the requirement ofJava Platform Enterprise Edition (J2EE).3. THE JDBC-ODBC BRIDGE. The JDBC-ODBC bridge, also known as JDBC type 1 driver is a database driver that utilizethe ODBC driver to connect the database. This driver translates JDBC method calls into ODBCfunction calls. The Bridge implements Jdbc for any database for which an Odbc driver isavailable. The Bridge is always implemented as the sun.jdbc.odbc Java package and it contains anative library used to access ODBC. Now we can conclude this topic: This first two component of JDBC, the JDBC API and theJDBC Driver Manager manages to connect to the database and then build a java program thatutilizes SQL commands to communicate with any RDBMS. On the other hand, the last twocomponents are used to communicate with ODBC or to test web application in thespecialized environment.JDBC ARCHITECTURE 1. Database connections 2. SQL statements 3. Result Set 4. Database metadata 5. Prepared statements 6. Binary Large Objects (BLOBs)_________________________________________________________________________________ 38JB INSTITUTE OF COMPUTER TECHNOLOGY
  39. 39. Project Report Multi-Password Management System__________________________________________________________________ 7. Character Large Objects (CLOBs) 8. Callable statements 9. Database drivers 10. Driver manager The JDBC API uses a Driver Manager and database-specific drivers to providetransparent connectivity to heterogeneous databases. The JDBC driver manager ensures that thecorrect driver is used to access each data source. The Driver Manager is capable of supportingmultiple concurrent drivers connected to multiple heterogeneous databases. The location of thedriver manager with respect to the JDBC drivers and the servlet is shown in Figure .LAYERS OF THE JDBC ARCHITECTURE_________________________________________________________________________________ 39JB INSTITUTE OF COMPUTER TECHNOLOGY
  40. 40. Project Report Multi-Password Management System__________________________________________________________________A JDBC driver translates standard JDBC calls into a network or database protocol or into adatabase library API call that facilitates communication with the database. This translation layerprovides JDBC applications with database independence. If the back-end database changes, onlythe JDBC driver need be replaced with few code modifications required. There are four distincttypes of JDBC drivers.JDBC DRIVER AND ITS TYPESType 1 JDBC-ODBC Bridge. Type 1 drivers act as a "bridge" between JDBC and anotherdatabase connectivity mechanism such as ODBC. The JDBC- ODBC bridge provides JDBCaccess using most standard ODBC drivers. This driver is included in the Java 2 SDK within thesun.jdbc.odbc package. In this driver the java statements are converted to jdbc statements. AJDBC statement calls the ODBC by using the JDBC-ODBC Bridge. And finally the query isexecuted by the database. This driver has serious limitation for many applicationsTYPE 1 JDBC ARCHITECTURE.Type 2 Java to Native API. Type 2 drivers use the Java Native Interface (JNI) to make callsto a local database library API. This driver converts the JDBC calls into a database specific call_________________________________________________________________________________ 40JB INSTITUTE OF COMPUTER TECHNOLOGY
  41. 41. Project Report Multi-Password Management System__________________________________________________________________for databases such as SQL, ORACLE etc. This driver communicates directly with the databaseserver. It requires some native code to connect to the database. Type 2 drivers are usually fasterthan Type 1 drivers. Like Type 1 drivers, Type 2 drivers require native database client librariesto be installed and configured on the client machine.TYPE 2 JDBC ARCHITECTUREType 3 Java to Network Protocol Or All- Java Driver. Type 3 drivers are pure Java driversthat use a proprietary network protocol to communicate with JDBC middleware on the server.The middleware then translates the network protocol to database-specific function calls. Type 3drivers are the most flexible JDBC solution because they do not require native database librarieson the client and can connect to many different databases on the back end. Type 3 drivers can bedeployed over the Internet without client installation.Java-------> JDBC statements------> SQL statements ------> databases.TYPE 3 JDBC ARCHITECTURE_________________________________________________________________________________ 41JB INSTITUTE OF COMPUTER TECHNOLOGY
  42. 42. Project Report Multi-Password Management System__________________________________________________________________Type 4 Java to Database Protocol. Type 4 drivers are pure Java drivers that implement aproprietary database protocol (like Oracles SQL*Net) to communicate directly with thedatabase. Like Type 3 drivers, they do not require native database libraries and can be deployedover the Internet without client installation. One drawback to Type 4 drivers is that they aredatabase specific. Unlike Type 3 drivers, if your back-end database changes, you may save topurchase and deploy a new Type 4 driver (some Type 4 drivers are available free of charge fromthe database manufacturer). However, because Type drivers communicate directly with thedatabase engine rather than through middleware or a native library, they are usually the fastestJDBC drivers available. This driver directly converts the java statements to SQL statements.TYPE 4 JDBC ARCHITECTURE_________________________________________________________________________________ 42JB INSTITUTE OF COMPUTER TECHNOLOGY
  43. 43. Project Report Multi-Password Management System__________________________________________________________________So, you may be asking yourself, "Which is the right type of driver for your application?" Well,that depends on the requirements of your particular project. If you do not have the opportunity orinclination to install and configure software on each client, you can rule out Type 1 and Type 2drivers.However, if the cost of Type 3 or Type 4 drivers is prohibitive, Type 1 and type 2 drivers maybecome more attractive because they are usually available free of charge. Price aside, the debatewill often boil down to whether to use Type 3 or Type 4 driver for a particular application. In thiscase, you may need to weigh the benefits of flexibility and interoperability against performance.Type 3 drivers offer your application the ability to transparently access different types ofdatabases, while Type 4 drivers usually exhibit better performance and, like Type 1 and Type 2drivers, may be available free if charge from the database manufacturer4.5. JAVA SERVER PAGES (JSP)_________________________________________________________________________________ 43JB INSTITUTE OF COMPUTER TECHNOLOGY
  44. 44. Project Report Multi-Password Management System__________________________________________________________________ Java server Pages is a simple, yet powerful technology for creating and maintainingdynamic-content web pages. Based on the Java programming language, Java Server Pages offersproven portability, open standards, and a mature re-usable component model. The Java ServerPages architecture enables the separation of content generation from content presentation. Thisseparation not eases maintenance headaches; it also allows web team members to focus on theirareas of expertise. Now, web page designer can concentrate on layout, and web applicationdesigners on programming, with minimal concern about impacting each other’s work.FEATURES OF JSPPortability:Java Server Pages files can be run on any web server or web-enabled application server thatprovides support for them. Dubbed the JSP engine, this support involves recognition, translation,and management of the Java Server Page lifecycle and its interaction components.ComponentsIt was mentioned earlier that the Java Server Pages architecture can include reusable Javacomponents. The architecture also allows for the embedding of a scripting language directly intothe Java Server Pages file. The components current supported include Java Beans, and Servlets.ProcessingA Java Server Pages file is essentially an HTML document with JSP scripting or tags. The JavaServer Pages file has a JSP extension to the server as a Java Server Pages file. Before the page isserved, the Java Server Pages syntax is parsed and processed into a Servlet on the server side.The Servlet that is generated outputs real content in straight HTML for responding to the client.Access Models:A Java Server Pages file may be accessed in at least two different ways. A client’s request comesdirectly into a Java Server Page. In this scenario, suppose the page accesses reusable Java Beancomponents that perform particular well-defined computations like accessing a database. Theresult of the Beans computations, called result sets is stored within the Bean as properties. Thepage uses such Beans to generate dynamic content and present it back to the client._________________________________________________________________________________ 44JB INSTITUTE OF COMPUTER TECHNOLOGY
  45. 45. Project Report Multi-Password Management System__________________________________________________________________In both of the above cases, the page could also contain any valid Java code. Java Server Pagesarchitecture encourages separation of content from presentation.Steps in the execution of a JSP Application:1. The client sends a request to the web server for a JSP file by giving the name of theJSP file within the form tag of a HTML page. 2. This request is transferred to the JavaWebServer. At the server side JavaWebServer receives the request and if it is a request for a jsp file server gives this request to the JSP engine.3. JSP engine is program which can understand the tags of the jsp and then it convertsthose tags into a Servlet program and it is stored at the server side. This Servlet is loaded in thememory and then it is executed and the result is given back to the JavaWebServer and then it istransferred back to the result is given back to the JavaWebServer and then it is transferred backto the client.JAVA BEANS:We can assemble a computer or fan very easily by choosing different components manufacturedby different vendors. We can take a screw from company one and use it to fit the Mother boardto cabinet as they are manufactured according to a standard. Observing to this point to simplifythe process of developing software, different software companies has proposed differentcomponent technologies. Ex: java soft java bean component tech, EJB component tech,Microsoft COM, BONOBO component model. Java Bean and EJB are two differentspecifications from java soft. EJB can be used to implement business logic on the server side.Most of the developers uses to assume Java Bean components are for developing GUIcomponents and they can be used only on the client side but we can develop any kind ofsoftware using Java Bean standard (GUI/ non GUI). Java Bean can be used either on the clientside or on the server side. AWT, JFC components are implemented according to Java Beanstandard. According to Java Bean standard a Bean component can support a set of properties, set_________________________________________________________________________________ 45JB INSTITUTE OF COMPUTER TECHNOLOGY
  46. 46. Project Report Multi-Password Management System__________________________________________________________________of events, any number of additional methods. A property can be read-write or it can be just readonly property. For read write property we need to provide setXXX and getXXX methods(isXXX if the property is Boolean )To support the following properties (i) uname (ii) email (iii) age according to Java bean standardwe need to write the code as,public class UserBean {String uname;String email;int age;public void setUsername( String value ) {uname = value; }public void setEmail( String value ) { email = value; }public void setAge( int value ) { age = value; }public String getUsername() { return uname; }public String getEmail() { return email; }public int getAge() { return age; }}Java Beans like JButton supports the events by providing the methods withnaming patterns (i) addXXXListener (ii) removeXXXListenerApart from developing Java bean class we can also provide BeanInfo class.In this class we can provide (i) Information about properties (ii) Informationabout the events and (iii) Information about the icon that represents ourbean._________________________________________________________________________________ 46JB INSTITUTE OF COMPUTER TECHNOLOGY
  47. 47. Project Report Multi-Password Management System__________________________________________________________________ 5.1 INTRODUCTION Software design sits at the technical kernel of the software engineering process and is appliedregardless of the development paradigm and area of application. Design is the first step in thedevelopment phase for any engineered product or system. The designer’s goal is to produce amodel or representation of an entity that will later be built. Beginning, once system requirementhave been specified and analyzed, system design is the first of the three technical activities-design, code and test that is required to build and verify software. The importance can be stated with a single word “Quality”. Design is the place wherequality is fostered in software development. Design provides us with representations of softwarethat can assess for quality. Design is the only way that we can accurately translate a customer’sview into a finished software product or system. Software design serves as a foundation for allthe software engineering steps that follow. Without a strong design we risk building an unstablesystem – one that will be difficult to test, one whose quality cannot be assessed until the laststage. During design, progressive refinement of data structure, program structure, andprocedural details are developed reviewed and documented. System design can be viewed fromeither technical or project management perspective. From the technical point of view, design iscomprised of four activities – architectural design, data structure design, interface design andprocedural design.5.2 UML DIAGRAMS 5.2.1 DATA FLOW DIAGRAMS: A data flow diagram is graphical tool used to describe and analyze movement of datathrough a system. These are the central tool and the basis from which the other components aredeveloped. The transformation of data from input to output, through processed, may bedescribed logically and independently of physical components associated with the system. These_________________________________________________________________________________ 47JB INSTITUTE OF COMPUTER TECHNOLOGY
  48. 48. Project Report Multi-Password Management System__________________________________________________________________are known as the logical data flow diagrams. The physical data flow diagrams show the actualimplements and movement of data between people, departments and workstations. A fulldescription of a system actually consists of a set of data flow diagrams. Using two familiarnotations Yourdon, Gane and Sarson notation develops the data flow diagrams. Each componentin a DFD is labeled with a descriptive name. Process is further identified with a number that willbe used for identification purpose. The development of DFD’s is done in several levels. Eachprocess in lower level diagrams can be broken down into a more detailed DFD in the next level.The lop-level diagram is often called context diagram. It consists a single process bit, whichplays vital role in studying the current system. The process in the context level diagram isexploded into other process at the first level DFD. The idea behind the explosion of a process into more process is that understanding at onelevel of detail is exploded into greater detail at the next level. This is done until furtherexplosion is necessary and an adequate amount of detail is described for analyst to understandthe process. Larry Constantine first developed the DFD as a way of expressing system requirementsin a graphical from, this lead to the modular design. A DFD is also known as a “bubble Chart” has the purpose of clarifying systemrequirements and identifying major transformations that will become programs in system design.So it is the starting point of the design to the lowest level of detail. A DFD consists of a series ofbubbles joined by data flows in the system.DFD SYMBOLS:In the DFD, there are four symbols1. A square defines a source(originator) or destination of system data2. An arrow identifies data flow. It is the pipeline through which the information flows_________________________________________________________________________________ 48JB INSTITUTE OF COMPUTER TECHNOLOGY
  49. 49. Project Report Multi-Password Management System__________________________________________________________________3. A circle or a bubble represents a process that transforms incoming data flow into outgoing data flows.4. An open rectangle is a data store, data at rest or a temporary repository of data Process that transforms data flow. Source or Destination of data Data flow Data StoreCONSTRUCTING A DFD:Several rules of thumb are used in drawing DFD’s:1. Process should be named and numbered for an easy reference. Each name should be representative of the process._________________________________________________________________________________ 49JB INSTITUTE OF COMPUTER TECHNOLOGY
  50. 50. Project Report Multi-Password Management System__________________________________________________________________2. The direction of flow is from top to bottom and from left to right. Data traditionally flow from source to the destination although they may flow back to the source. One way to indicate this is to draw long flow line back to a source. An alternative way is to repeat the source symbol as a destination. Since it is used more than once in the DFD it is marked with a short diagonal.3. When a process is exploded into lower level details, they are numbered.4. The names of data stores and destinations are written in capital letters. Process and dataflow names have the first letter of each work capitalized A DFD typically shows the minimum contents of data store. Each data store should contain all the data elements that flow in and out. Questionnaires should contain all the data elements that flow in and out. Missing interfaces redundancies and like is then accounted for often through interviews.SAILENT FEATURES OF DFD’s: 1. The DFD shows flow of data, not of control loops and decision are controlled considerations do not appear on a DFD. 2. The DFD does not indicate the time factor involved in any process whether the dataflow take place daily, weekly, monthly or yearly. 3. The sequence of events is not brought out on the DFD.RULES FOR DFD:Fix the scope of the system by means of context diagrams.Organize the DFD so that the main sequence of the actions reads left to right and Top to bottom.Identify all inputs and outputs._________________________________________________________________________________ 50JB INSTITUTE OF COMPUTER TECHNOLOGY
  51. 51. Project Report Multi-Password Management System__________________________________________________________________Identify and label each process internal to the system with rounded circles.A process is required for all the data transformation and transfers. Therefore, never connect a data store to a data source or the destinations or another data store with just a data flow arrow.Do not indicate hardware and ignore control information.Make sure the names of the processes accurately convey everything the process is done.There must not be unnamed process.Indicate external sources and destinations of the data, with squares.Number each occurrence of repeated external entities.Identify all data flows for each process step, except simple Record retrievals.Label data flow on each arrow.Use details flow on each arrow.Use the details flow arrow to indicate data movements.There can’t be unnamed data flow.A data flow can’t connect two external entities.LEVELS OF DFD: The complexity of the business system means that it is a responsible to represent theoperations of any system of single data flow diagram. At the top level, an Overview of thedifferent systems in an organization is shown by the way of context analysis diagram. Whenexploded into DFD_________________________________________________________________________________ 51JB INSTITUTE OF COMPUTER TECHNOLOGY
  52. 52. Project Report Multi-Password Management System__________________________________________________________________They are represented by: • LEVEL-0 : SYSTEM INPUT/OUTPUT • LEVEL-1:SUBSYSTEM LEVEL DATAFLOW FUNCTIONAL • LEVEL-2 : FILE LEVEL DETAIL DATA FLOW.The input and output data shown should be consistent from one level to the next.LEVEL-0: SYSTEM INPUT/OUTPUT LEVEL A level-0 DFD describes the system-wide boundaries, dealing inputs to and outputs fromthe system and major processes. This diagram is similar to the combined user-level contextdiagram.LEVEL-1: SUBSYSTEM LEVEL DATA FLOW A level-1 DFD describes the next level of details within the system, detailing the dataflows between subsystems, which makeup the whole.LEVEL-2: FILE LEVEL DETAIL DATA FLOW All the projects are feasible given unlimited resources and infinite time. It is bothnecessary and prudent to evaluate the feasibility of the project at the earliest possible time.Feasibility and the risk analysis are pertained in many ways. If project risk is great.ZERO LEVEL DIAGRAM Multipassword ADMIN processs USERFIRST LEVAL DIAGRAM_________________________________________________________________________________ 52JB INSTITUTE OF COMPUTER TECHNOLOGY
  53. 53. Project Report Multi-Password Management System__________________________________________________________________ SECOND LEVAL DIAGRAM_________________________________________________________________________________ 53JB INSTITUTE OF COMPUTER TECHNOLOGY
  54. 54. Project Report Multi-Password Management System__________________________________________________________________5.2.2 E-R DIAGRAMS:Entity-Relationship Modeling E-R data model is a high level conceptual model that describes data as entities, attributesand relationship. The data modeling process is iterative. E-R diagrams enable designers and_________________________________________________________________________________ 54JB INSTITUTE OF COMPUTER TECHNOLOGY
  55. 55. Project Report Multi-Password Management System__________________________________________________________________users to express their understanding of what the planned database is intended to do and how itmight work, and to communicate about the database through a common language.Entity Classes and Attributes: • Entity class is represented by rectangles. • Attributes are represented by ovals. • Key attributes is represented by an underline. • Multi- value attribute is represented with an oval with a double border. • Derived attribute is represented with an oval dashed border. • Composite attribute is represented with an oval that connects to additional ovals.Notations of E-R Diagram Entity set_________________________________________________________________________________ 55JB INSTITUTE OF COMPUTER TECHNOLOGY
  56. 56. Project Report Multi-Password Management System__________________________________________________________________ Attributes Relationship set Relationship Key attributes AE-R Diagram_________________________________________________________________________________ 56JB INSTITUTE OF COMPUTER TECHNOLOGY
  57. 57. Project Report Multi-Password Management System__________________________________________________________________ Creates Having Account Users Saved Account Details Encription5.2.3 USE CASE DIAGRAMUse cases model the system from the end users point of view, with the following objectives  To define the functional and operational requirements of the system by defining a scenario of usage._________________________________________________________________________________ 57JB INSTITUTE OF COMPUTER TECHNOLOGY
  58. 58. Project Report Multi-Password Management System__________________________________________________________________  To provide a class and unambiguous description of how the end user and the system interact with one another.  To provide a basis for validation testing. Login Encription Type Sms Services ADMIN USER Users Account Logout5.2.4 SEQUANCE DIAGRAM_________________________________________________________________________________ 58JB INSTITUTE OF COMPUTER TECHNOLOGY
  59. 59. Project Report Multi-Password Management System__________________________________________________________________ service Database : USER 1: Request to register 2: Open Registration form 3: Enter Details 4: Stores Registration infm in Encripted format 5: Request to check his password 6: Open password checking form 7: Enter the user name 8: User information 9: descripted type of password information5.2.5 CLASS DIAGRAM_________________________________________________________________________________ 59JB INSTITUTE OF COMPUTER TECHNOLOGY
  60. 60. Project Report Multi-Password Management System__________________________________________________________________ tblmasteruser tblSmsRequest Userid(pk) : int requestid(pk) : int usetype : varchar requesteddatetime : timestamp firstname : varchar smsmessage : varchar mobile : varchar mobile number : int email : v archar queryString : varchar loginid : int status : varchar pwd : varchar requestedpwd : v archar add() status : varchar view() update() Add() View() Update() tblSmsResponse tblUserAccount requestid(fk) : int userid(fk) : int responseid(pk) : int accountid(pk) : int sms services : varchar accountname : varchar mobileno : int accountpassword : varchar status : varchar respEncriptiontypeid : int status : varchar add() view() add() update() view() update()_________________________________________________________________________________ 60JB INSTITUTE OF COMPUTER TECHNOLOGY
  62. 62. Project Report Multi-Password Management System__________________________________________________________________24 SMS MESSAGE VARCHAR 4525 MOBILENUMBER INTEGER 1026 ACCONT ID INTEGER 10 PRIMARY KEY27 ACCOUNT NAME VARCHAR 4528 ACCOUNTPWD VARCHAR 4529 USERID INTEGER 10 FOREIGN KEY30 ENCRIPTIONID INTEGER 10 FOREIGN KEY5.2.7 DATABASE TABLETABLE: LOGINColumn Data Type Allo Nulls Auto incrementUserid_pk INT(10) Not allowed allowUsername VARCHAR(45) Not allowed_________________________________________________________________________________ 62JB INSTITUTE OF COMPUTER TECHNOLOGY
  63. 63. Project Report Multi-Password Management System__________________________________________________________________Password VARCHAR(45) Not allowedTABLE: MASTERUSERSColumn Data Type Allo Nulls Auto incrementUserid_pk INT(10) Not allowed allowUsername VARCHAR(45) Not allowedFirst Name VARCHAR(45) Not allowedLast Name VARCHAR(45) Not allowedPhone INT(10) Not allowedMobile1 INT(10) Not allowedMobile2 INT(10) Not allowedMobile3 INT(10) Not allowedE-Mail VARCHAR(45) Not allowedLogin ID VARCHAR(45) Not allowedPassword VARCHAR(45) Not allowedStatus VARCHAR(45) Not allowedTABLE: ENCRIPTION TYPEColumn Data Type Allo Nulls Auto incrementEncryptionid_P INT(10) Not allowed allowKEncryption VARCHAR(45) Not allowedNameDetails VARCHAR(45) Not allowed_________________________________________________________________________________ 63JB INSTITUTE OF COMPUTER TECHNOLOGY
  64. 64. Project Report Multi-Password Management System__________________________________________________________________Status VARCHAR(45) Not allowedTABLE: SMS REQUESTColumn Data Type Allo Nulls Auto incrementrequestid_pk INT(10) Not allowed allowRequestdatetime TimeStamp Not allowedSmsmessage_pk VARCHAR(45) Not allowedMobilenumber INT(10) Not allowedQuertstring VARCHAR(45) Not allowedRequestPassword VARCHAR(45) Not allowedStatus VARCHAR(45) Not allowedTABLE: SMS RESPONSEColumn Data Type Allo Nulls Auto incrementresponseid INT(10) Not allowed allowRequestid_FK INT(10) Not allowedResponsedatetime TimeStamp Not allowedSmsmessage VARCHAR(45) Not allowed_________________________________________________________________________________ 64JB INSTITUTE OF COMPUTER TECHNOLOGY
  65. 65. Project Report Multi-Password Management System__________________________________________________________________Mobilenumber INT(10) Not allowedStatus VARCHAR(45) Not allowedTABLE: USER ACCONTColumn Data Type Allo Nulls Auto incrementaccountid INT(10) Not allowed allowuserid_FK INT(10) Not allowedaccountname VARCHAR(45) Not allowedaccountpassword VARCHAR(45) Not allowedResponseencrypt INT(10) Not allowedionid_FKStatus VARCHAR(45) Not allowedINTRODUCTION Testing is one of the most important phases in the software development activity. Insoftware development life cycle (SDLC), the main aim of testing process is the quality; thedeveloped software is tested against attaining the required functionality and performance. During the testing process the software is worked with some particular test cases and theoutput of the test cases are analyzed whether the software is working according to theexpectations or not._________________________________________________________________________________ 65JB INSTITUTE OF COMPUTER TECHNOLOGY
  66. 66. Project Report Multi-Password Management System__________________________________________________________________ The success of the testing process in determining the errors is mostly depends upon the testcase criteria, for testing any software we need to have a description of the expected behavior ofthe system and method of determining whether the observed behavior confirmed to the expectedbehaviorLEVELS OF TESTING Since the errors in the software can be injured at any stage. So, we have to carry out thetesting process at different levels during the development. The basic levels of testing are Unit,Integration, System and Acceptance Testing. The Unit Testing is carried out on coding. Here different modules are tested against thespecifications produced during design for the modules. In case of integration testing differenttested modules are combined into sub systems and tested in case of the system testing the fullsoftware is tested and in the next level of testing the system is tested with user requirementdocument prepared during SRS. There are two basic approaches for testing. They areFUNCTIONAL TESTING: In Functional Testing test cases are decided solely on the basis of requirements of theprogram or module and the internals of the program or modules are not considered for selectionof test cases. This is also called Black Box TestingSTRUCTURAL TESTING: In Structural Testing test cases are generated on actual code of the program or module tobe tested. This is called White Box Testing._________________________________________________________________________________ 66JB INSTITUTE OF COMPUTER TECHNOLOGY
  67. 67. Project Report Multi-Password Management System__________________________________________________________________TESTING PROCESS A number of activities must be performed for testing software. Testing starts with testplan. Test plan identifies all testing related activities that need to be performed along with theschedule and guide lines for testing. The plan also specifies the levels of testing that need to bedone, by identifying the different testing units. For each unit specified in the plan first the testcases and reports are produced. These reports are analyzed.TEST PLAN: Test plan is a general document for entire project, which defines the scope, approach to be taken and the personal responsible for different activities of testing. The inputs for forming test plans are•Project plan•Requirements document•System designTEST CASE SPECIFICATION: Although there is one test plan for entire project test cases have to be specified separately for each test case. Test case specification gives for each item to be tested. All test cases and outputs expected for those test cases.TEST CASE EXECUTION AND ANALYSIS: The steps to be performed for executing the test cases are specified in separate document called test procedure specification. This document specify any specify requirements that exist_________________________________________________________________________________ 67JB INSTITUTE OF COMPUTER TECHNOLOGY
  68. 68. Project Report Multi-Password Management System__________________________________________________________________ for setting the test environment and describes the methods and formats for reporting the results of testing.UNIT TESTING: Unit testing mainly focused first in the smallest and low level modules, proceeding one at a time. Bottom-up testing was performed on each module. As developing a driver program, that tests modules by developed or used. But for the purpose of testing, modules themselves were used as stubs, to print verification of the actions performed. After the lower level modules were tested, the modules that in the next higher level those make use of the lower modules were tested. Each module was tested against required functionally and test cases were developed to test the boundary values.INTEGRATING TESTING Integration testing is a systematic technique for constructing the program structure, while at the same time conducting tests to uncover errors associated with interfacing. As the system consists of the number of modules the interfaces to be tested were between the edges of the two modules. The software tested under this was incremental bottom-up approach. Bottom-up approach integration strategy was implemented with the following steps. 1. Low level modules were combined into clusters that perform specific software subfunctions. 2. The clusters were then tested.SYSTEM TESTING:_________________________________________________________________________________ 68JB INSTITUTE OF COMPUTER TECHNOLOGY
  69. 69. Project Report Multi-Password Management System__________________________________________________________________ System testing is a series of different tests whose primary purpose is to fully exercise the computer-based system. It also tests to find discrepancies between the system and its original objective, current specifications. LOGINFORM_________________________________________________________________________________ 69JB INSTITUTE OF COMPUTER TECHNOLOGY
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  71. 71. Project Report Multi-Password Management System__________________________________________________________________REGISTRATION FORM FORGOTPWD_________________________________________________________________________________ 71JB INSTITUTE OF COMPUTER TECHNOLOGY
  72. 72. Project Report Multi-Password Management System__________________________________________________________________ USERHOMEPAGE_________________________________________________________________________________ 72JB INSTITUTE OF COMPUTER TECHNOLOGY
  73. 73. Project Report Multi-Password Management System__________________________________________________________________ ACCOUNT_________________________________________________________________________________ 73JB INSTITUTE OF COMPUTER TECHNOLOGY
  74. 74. Project Report Multi-Password Management System__________________________________________________________________ VIEWACCOUNT_________________________________________________________________________________ 74JB INSTITUTE OF COMPUTER TECHNOLOGY
  75. 75. Project Report Multi-Password Management System__________________________________________________________________ DECRIPT ACCOUNT_________________________________________________________________________________ 75JB INSTITUTE OF COMPUTER TECHNOLOGY
  76. 76. Project Report Multi-Password Management System__________________________________________________________________ CHAING PWD_________________________________________________________________________________ 76JB INSTITUTE OF COMPUTER TECHNOLOGY
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  78. 78. Project Report Multi-Password Management System__________________________________________________________________ USER PROFILE_________________________________________________________________________________ 78JB INSTITUTE OF COMPUTER TECHNOLOGY
  79. 79. Project Report Multi-Password Management System__________________________________________________________________ VIEW ENCRIPTION UPDATE ENCRIPTION_________________________________________________________________________________ 79JB INSTITUTE OF COMPUTER TECHNOLOGY
  80. 80. Project Report Multi-Password Management System___________________________________________________________________________________________________________________________________________________ 80JB INSTITUTE OF COMPUTER TECHNOLOGY