Ooad (object oriented analysis design)
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This document discusses Object-Oriented Analysis and Design (OOAD). It defines objects and classes, with objects being concepts or things and classes being groups of similar objects. OOAD models a system as interacting objects. Benefits include tackling complex problems, improved communication, reusability, and consistency across models. The analysis phase develops a model of the application, the design phase refines this, and the implementation phase codes the design. Examples of an activity diagram, communication diagram, class diagram, and sequence diagram are provided to illustrate OOAD modeling.
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Object Modelling Technique " ooad "
Object Modeling Technique (OMT) is real world based modeling approach for software modeling and designing. It was developed basically as a method to develop object-oriented systems and to support object-oriented programming. It describes the static structure of the system.
Object Modeling Technique is easy to draw and use. It is used in many applications like telecommunication, transportation, compilers etc. It is also used in many real world problems. OMT is one of the most popular object oriented development techniques used now-a-days. OMT was developed by James Rambaugh.
Purpose of Object Modeling Technique:
To test physical entity before construction of them.
To make communication easier with the customers.
To present information in an alternative way i.e. visualization.
To reduce the complexity of software.
To solve the real world problems.
Object Modeling Technique’s Models:
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Dynamic Model:
Dynamic Model involves states, events and state diagram (transition diagram) on the model. Main concepts related with Dynamic Model are states, transition between states and events to trigger the transitions. Predefined relationships in object model are aggregation (concurrency) and generalization.
Functional Model:
Functional Model focuses on the how data is flowing, where data is stored and different processes. Main concepts involved in Functional Model are data, data flow, data store, process and actors. Functional Model in OMT describes the whole processes and actions with the help of data flow diagram (DFD).
Phases of Object Modeling Technique:
OMT has the following phases:
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This the first phase of the object modeling technique. This phase involves the preparation of precise and correct modelling of the real world problems. Analysis phase starts with setting a goal i.e. finding the problem statement. Problem statement is further divided into above discussed three models i.e. object, dynamic and functional model.
System Design:
This is the second phase of the object modeling technique and it comes after the analysis phase. It determines all system architecture, concurrent tasks and data storage. High level architecture of the system is designed during this phase.
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SQL- MOST IMPORTANT CONCEPTS
This document provides an overview of some of the most important SQL concepts, including SELECT queries, the DISTINCT clause, INSERT statements, DELETE statements, UPDATE statements, and JOINs. It discusses how to retrieve data from databases using SELECT, avoid duplicate values with DISTINCT, insert new rows using INSERT, and copy data between tables using INSERT with a SELECT statement. The document uses examples and sample tables to demonstrate the syntax and usage of these key SQL statements.
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How Artificial Intelligence change the different section of business,
How Artificial Intelligence effects banking and finance.
Robotic process automation
RPA, or robotic process automation, uses software "robots" to automate repetitive tasks. It can increase productivity by allowing bots to work continuously without breaks. RPA also improves accuracy by eliminating human errors and increasing production. Examples of how RPA can be used include automating social media status updates, consolidating data from multiple reports into a single application, and entering loan data into systems in the financial services industry.
Python
This document provides an agenda and overview for a Python training course. The agenda covers key Python topics like dictionaries, conditional statements, loops, functions, modules, input/output, error handling, object-oriented programming and more. The introduction section explains that Python is an interpreted, interactive and object-oriented language well-suited for beginners. It also outlines features like rapid development, automatic memory management and support for procedural and object-oriented programming. The document concludes by explaining Python's core data types including numbers, strings, lists, tuples and dictionaries.
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The document discusses software testing and the software testing life cycle (STLC). It describes STLC phases like requirements analysis, test planning, test design, test execution, and test closure. It also covers test methodologies like black box testing and white box testing. Functional testing types like unit testing, integration testing, and system testing are explained. The importance of functional testing to ensure software quality is highlighted.
Android introduction and rooting technology
Android is an open source Platform or a software stack for mobile. It is a Google product. but still as it is a open source so anyone can develop its application It run on dalvik VM and its applications are written in java. Android is a terrifically growing mobile platform and also a user loveable OS for mobile phone. We can see that its new versions are coming with a small or can say with in a minimum interval . Recently we have android 5.0 and on its release google had announced for android 5.0.1 also.
The Android OS project was started in 2001. Initially developed by Android, Inc., which Google backed financially and later bought in 2005, Android was unveiled in 2007 along with the founding of the Open Handset Alliance.
1-HISTORY OF ANDROID:-
In 2005 Google buys android Incorporation and started dalvik. At that time it is not possible for Google to go out and buy the companies to work on android, so Google in 2007 announced Android as an Open Handset Alliance so it a point to be noted that know android is not owned by only by Google or Google is the owner of android but OHA is the owner of android. 2008 to 2010 the android become a biggest used platform for mobile, it was world wide accepted mobile platform domain. In 2011 the chairman of Google Mr. Eric had decided to more to other device also like gaming, tablets, Tv watches, Car GPRS systems, etc.
YEAR TASK
2005 Google buys ANDROID Inc.
2007 Open Handset Alliance. Announced FIRST SDK.
2008 Android become the domain of mobile platform
2011 Games, tablets, watches,etc
Why Dalvik VM not Java VM (JVM) ?
Android runs java app so why don’t we use java vm ?
because of two good reasons
1- business.
2- Technical.
Business is Java is owned by Oracle. So We have to buy license for java VM. Due to which Android will no longer be free, and there is no reason that why Google will give profit to Oracle. And it is not easy for Google to buy license from oracle for each VM After all it is the reason for its pride. There are main two technical reasons
1-battery consumption of java vm. As java is optimized and is designed to run on Intel chips easily and Intel chips need more and more power to run and in mobiles the battery in main consistent so intel chips are replaced by armed chips, so it is not possible to run java vm on it.
2- Memory consumption in java vm to run any app first we have to load it class for memory to Hard disk or RAM, so to run first we have to wait for vm to search and load class in HD or RAM. And in mobile we don’t have such a large memory that we load classes every before running any app. So it better to replace JVM with dalvik vm which use classes but there is no need to load it in RAM it run it directly.
Difference b\w Delvik and ART
0 In dalvik runtime, the JIT in bounded to CPU but ART frees the CPU from translating DEX to machine code during app’s execution thus reduce energy consumption.
o ART is faster as it directly convert. DEX byte-code to NAT
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Data flow diagrams (DFDs) show the flow of data through a system by using symbols to represent external entities, processes, data stores, and data flows. DFDs do not show the detailed logic or programming within processes. There are two common notations - Yourdon and Coad, and Gane and Sarson - which represent the different elements using standard graphical symbols. DFDs help provide an overview of how data moves between external sources, processes that manipulate the data, and locations where the data is stored within the system.
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Ooad (object oriented analysis design)
- 2. Object and Classes run through Object: Is a concept or thing or activity Class: it is a group of objects with similar properties, common behavior, common relationship to other objects
- 3. What is OOAD In the 1990s, Coad incorporated behavioral ideas to object-oriented methods. Object oriented analysis and design is a software engineering approach that model a system group of interacting objects.
- 4. The Object-Oriented Modeling Approach Benefits 1.The ability to tackle more challenging problem domains 2.Improved communication among users, analysts, designers, and programmers 3.Reusability of analysis, design, and programming results 4.Increased consistency among the models developed during object-oriented analysis, design, and programming A.4
- 5. How to create OOAD models Analysis Phase Model of the real-world application is developed showing its important properties Model specifies the functional behavior of the system independent of implementation details Design Phase Analysis model is refined and adapted to the environment Implementation Phase Design is implemented using a programming language or database management system A.5
- 6. Example case study Say hello Offer cart
- 8. Wait for Customer Offer card SmileSay hello Get cart No Customer Refuses Cart
- 9. Classifying the objects in the use case greet by using analytical class Classification of objects Boundary Class Door Entity class Shopping Cart Greeting Shopper Control class Greeting Step
- 10. Communication Diagram Door Greeter Cart Customer 1. Open() A.1 Smile() A.2 SayHello() 3. Offer Cart 4.1 Getcart() 4.1 Givecart()
- 12. Sequence diagram Door Greeter CartCustomer Open() Sayhello() Smile() OfferCart() Givecart() Getcart() Parallel opp