Information Systems Lecture 11,12,13 IT Fundamentals  (Database Management Systems) &  (Telecommunications & Networks) By ...
Lecture Administration <ul><li>Comments on Assignment 1 </li></ul><ul><li>Database Management Systems </li></ul><ul><ul><l...
Basic Concepts <ul><li>Data the starting point in Information Systems </li></ul><ul><li>Data Management </li></ul><ul><ul>...
File Based Systems <ul><ul><li>Data properly identified and understood when stored in a file (e.g. Customer File, Invoice)...
Database Management <ul><li>The need to access data quickly </li></ul><ul><li>A collection of software designed to provide...
Advantages & Disadvantages <ul><li>Advantages </li></ul><ul><ul><li>Flexibility </li></ul></ul><ul><ul><li>Faster Response...
Database Management for Larger Systems <ul><li>Large Database Environment </li></ul><ul><ul><li>Increased Complexity </li>...
Relational Databases…. <ul><li>Independent Tables </li></ul><ul><li>Relationship through primary & secondary keys </li></u...
New Trends in Databases <ul><li>Object Oriented </li></ul><ul><ul><li>Objects  </li></ul></ul><ul><ul><li>Reusability </li...
References <ul><li>Charles Parker, Thomas Case. (2000).  “Management Information Systems :  Action & Strategy ”. (2 nd  Ed...
Telecommunication & Networks <ul><li>Telecommunication and Networks </li></ul><ul><li>Networking Hardware & Software & Con...
Telecommunication & Networks <ul><li>Telecommunication </li></ul><ul><ul><li>Sending of information in any form (voice,dat...
Telecommunication & Networks <ul><li>Role and Scope of Telecommunication in Business </li></ul><ul><ul><li>Organizational ...
Telecommunication <ul><li>Telecommunication Model </li></ul><ul><ul><li>Terminals </li></ul></ul><ul><ul><li>Telecommunica...
 
Networking Hardware, Software & Connecting Media <ul><li>Hardware </li></ul><ul><ul><li>LAN Cards </li></ul></ul><ul><ul><...
Networking Hardware, Software & Connecting Media <ul><li>Media </li></ul><ul><ul><li>Cables </li></ul></ul><ul><ul><ul><li...
 
Internet & E-Commerce <ul><li>Internet </li></ul><ul><ul><li>Network of Networks </li></ul></ul><ul><ul><li>Expansion Rate...
E-Commerce <ul><li>Types of E-Commerce </li></ul><ul><ul><li>B2C (Business to Consumer) </li></ul></ul><ul><ul><li>B2B (Bu...
E-Commerce…. <ul><li>E-Commerce Essentials </li></ul><ul><ul><li>Merchant Systems </li></ul></ul><ul><ul><ul><li>Online Sh...
Management Concerns <ul><li>The Need for Network </li></ul><ul><ul><li>Requirement Analysis </li></ul></ul><ul><ul><ul><li...
Concerns…. <ul><li>Structural Changes </li></ul><ul><li>Cultural Changes </li></ul><ul><ul><li>The issues of face-to-face ...
References <ul><li>Charles Parker, Thomas Case. (2000).  “Management Information Systems :  Action & Strategy ”. (2 nd  Ed...
Upcoming SlideShare
Loading in …5
×

Information Systems

549 views

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
549
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
15
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Information Systems

  1. 1. Information Systems Lecture 11,12,13 IT Fundamentals (Database Management Systems) & (Telecommunications & Networks) By Farhan Mir
  2. 2. Lecture Administration <ul><li>Comments on Assignment 1 </li></ul><ul><li>Database Management Systems </li></ul><ul><ul><li>Basic Concepts </li></ul></ul><ul><ul><li>Traditional File Based Environment </li></ul></ul><ul><ul><li>Database Approach </li></ul></ul><ul><ul><li>Components of a Database System </li></ul></ul><ul><ul><li>Types of Databases </li></ul></ul><ul><ul><li>New Trends in Databases </li></ul></ul><ul><ul><li>Management Issues </li></ul></ul>
  3. 3. Basic Concepts <ul><li>Data the starting point in Information Systems </li></ul><ul><li>Data Management </li></ul><ul><ul><li>Data basically stored in the form of files and databases </li></ul></ul><ul><ul><li>Data Management Hierarchy </li></ul></ul><ul><ul><ul><li>Bit-Byte-Field-Record-File-Database </li></ul></ul></ul><ul><ul><li>Issues </li></ul></ul><ul><ul><ul><li>Content </li></ul></ul></ul><ul><ul><ul><li>Access </li></ul></ul></ul><ul><ul><ul><li>Organization </li></ul></ul></ul><ul><ul><ul><li>Accuracy </li></ul></ul></ul><ul><ul><ul><li>Integrity </li></ul></ul></ul><ul><ul><ul><li>Security </li></ul></ul></ul><ul><ul><ul><li>Privacy </li></ul></ul></ul><ul><ul><ul><li>Cost </li></ul></ul></ul><ul><li>Design (in the light of above issues) </li></ul><ul><ul><li>User Interface </li></ul></ul>
  4. 4. File Based Systems <ul><ul><li>Data properly identified and understood when stored in a file (e.g. Customer File, Invoice) </li></ul></ul><ul><ul><li>In File processing, data is physically arranged/organized in files </li></ul></ul><ul><ul><li>Display Terminals Started the concept of handling data in files </li></ul></ul><ul><ul><li>Working of File based system </li></ul></ul><ul><ul><ul><li>Application Program & Data Files </li></ul></ul></ul><ul><ul><ul><li>File management software </li></ul></ul></ul><ul><ul><li>Issues </li></ul></ul><ul><ul><ul><li>Multiple file usage(integrating data from 2 or more files) </li></ul></ul></ul><ul><ul><ul><li>Data Redundancy </li></ul></ul></ul><ul><ul><ul><li>Data Updation </li></ul></ul></ul><ul><ul><ul><li>Slow Processing </li></ul></ul></ul><ul><ul><li>Advantages </li></ul></ul><ul><ul><ul><li>In-expensive </li></ul></ul></ul><ul><ul><ul><li>Simple to use </li></ul></ul></ul>
  5. 5. Database Management <ul><li>The need to access data quickly </li></ul><ul><li>A collection of software designed to provide a complete approach to organize and access organizational data </li></ul><ul><li>Flexible access </li></ul><ul><li>Independent Files may be utilized to generate new reports </li></ul><ul><li>Example of a Bank Customer asking queries regarding his various accounts </li></ul><ul><li>Database Environment </li></ul><ul><ul><li>Users, Programmers, Application Programs, Database, Utility Programs </li></ul></ul><ul><li>User Interface </li></ul><ul><ul><li>Example of Oracle (developer) </li></ul></ul>
  6. 6. Advantages & Disadvantages <ul><li>Advantages </li></ul><ul><ul><li>Flexibility </li></ul></ul><ul><ul><li>Faster Response </li></ul></ul><ul><ul><li>Multiple Access </li></ul></ul><ul><ul><li>Less Storage </li></ul></ul><ul><ul><li>Integrity </li></ul></ul><ul><ul><li>Overall Management </li></ul></ul><ul><li>Disadvantages </li></ul><ul><ul><li>High Cost </li></ul></ul><ul><ul><ul><li>Initial purchase cost </li></ul></ul></ul><ul><ul><ul><li>Hardware Requirements </li></ul></ul></ul><ul><ul><ul><li>Professionals </li></ul></ul></ul><ul><ul><li>Complexity </li></ul></ul><ul><ul><li>Disaster & Recovery issues </li></ul></ul>
  7. 7. Database Management for Larger Systems <ul><li>Large Database Environment </li></ul><ul><ul><li>Increased Complexity </li></ul></ul><ul><ul><li>Transactional Data and Networking Needs </li></ul></ul><ul><ul><li>Experts Needed to develop and maintain the databases </li></ul></ul><ul><ul><li>Multiple Users </li></ul></ul><ul><ul><li>Security Requirements </li></ul></ul><ul><li>Database Administration </li></ul><ul><ul><li>Data Administrator (what data will be stored) Vs. </li></ul></ul><ul><ul><li>Database Administrator (who actually creates & maintain database, interacts with users & participants to evaluate needs) </li></ul></ul><ul><li>Relational Databases </li></ul>
  8. 8. Relational Databases…. <ul><li>Independent Tables </li></ul><ul><li>Relationship through primary & secondary keys </li></ul><ul><li>SQL </li></ul><ul><ul><li>Select </li></ul></ul><ul><ul><li>Project </li></ul></ul><ul><ul><li>Join </li></ul></ul><ul><li>Authorization </li></ul><ul><li>Compatibility with Existing Applications </li></ul><ul><li>Database Security </li></ul><ul><li>Data Dictionaries </li></ul><ul><li>Distributed Databases </li></ul>
  9. 9. New Trends in Databases <ul><li>Object Oriented </li></ul><ul><ul><li>Objects </li></ul></ul><ul><ul><li>Reusability </li></ul></ul><ul><ul><li>Advance needs of Software Engineering </li></ul></ul><ul><li>Multimedia </li></ul><ul><ul><li>Merchandising </li></ul></ul><ul><ul><li>Training </li></ul></ul><ul><ul><li>Education </li></ul></ul><ul><li>Image Processing </li></ul><ul><li>Outside Database Providers </li></ul>
  10. 10. References <ul><li>Charles Parker, Thomas Case. (2000). “Management Information Systems : Action & Strategy ”. (2 nd Ed). Chapter 7 </li></ul><ul><li>Kenneth C. Laudon & Jane P. Laudon (2001). “ Management Information Systems: Managing a Digital Firm ”.( 7 th Ed). Chapter 7 </li></ul>
  11. 11. Telecommunication & Networks <ul><li>Telecommunication and Networks </li></ul><ul><li>Networking Hardware & Software & Connecting Media </li></ul><ul><li>Internet, Intranet and Extranet </li></ul><ul><li>Internet & E-Commerce </li></ul><ul><li>Electronic Communications </li></ul><ul><li>Management Issues </li></ul>
  12. 12. Telecommunication & Networks <ul><li>Telecommunication </li></ul><ul><ul><li>Sending of information in any form (voice,data,text,graphics) from one place to another using electronic and light-media </li></ul></ul><ul><li>Traditional stand-alone systems Vs. Inter-organizational systems. </li></ul><ul><ul><li>The Need for employees to work collaboratively </li></ul></ul><ul><ul><li>Time </li></ul></ul><ul><ul><ul><li>Instant/quick information requests </li></ul></ul></ul><ul><ul><li>Geographical needs </li></ul></ul><ul><ul><li>Alliances </li></ul></ul><ul><ul><ul><li>EDI </li></ul></ul></ul><ul><ul><li>Processing Needs </li></ul></ul><ul><ul><ul><li>Distributed Environment </li></ul></ul></ul><ul><ul><li>Sharing </li></ul></ul><ul><ul><ul><li>The systems and system resources </li></ul></ul></ul>
  13. 13. Telecommunication & Networks <ul><li>Role and Scope of Telecommunication in Business </li></ul><ul><ul><li>Organizational Collaboration </li></ul></ul><ul><ul><li>Information Exchange </li></ul></ul><ul><ul><li>Business Communication </li></ul></ul><ul><ul><ul><li>Formal & Informal </li></ul></ul></ul><ul><ul><li>E-Commerce </li></ul></ul><ul><ul><li>Tele-working Environment (an increasing trend) </li></ul></ul><ul><ul><ul><li>Example: System Maintenance and Disaster Recovery </li></ul></ul></ul><ul><ul><ul><li>Another Example: Idea Generators in Fashion Design Industry </li></ul></ul></ul><ul><ul><ul><li>Virtual Universities (E-Learning/ Distance Learning) </li></ul></ul></ul><ul><li>The Need for Protocols </li></ul><ul><ul><li>File Transfer </li></ul></ul><ul><ul><li>Sharing Resources </li></ul></ul>
  14. 14. Telecommunication <ul><li>Telecommunication Model </li></ul><ul><ul><li>Terminals </li></ul></ul><ul><ul><li>Telecommunication Processors </li></ul></ul><ul><ul><li>Telecommunication Channels </li></ul></ul><ul><ul><li>Computers </li></ul></ul><ul><ul><li>Control Software </li></ul></ul><ul><li>Types </li></ul><ul><ul><li>LAN </li></ul></ul><ul><ul><li>WAN </li></ul></ul><ul><ul><li>Intranets/Extranets </li></ul></ul><ul><ul><li>Client/Server Networks </li></ul></ul>
  15. 16. Networking Hardware, Software & Connecting Media <ul><li>Hardware </li></ul><ul><ul><li>LAN Cards </li></ul></ul><ul><ul><li>Modems </li></ul></ul><ul><ul><li>Multiplexers </li></ul></ul><ul><ul><li>Switches </li></ul></ul><ul><ul><li>Routers </li></ul></ul><ul><ul><li>Hubs </li></ul></ul><ul><ul><li>Exchanges </li></ul></ul><ul><li>Software </li></ul><ul><ul><li>O/S </li></ul></ul><ul><ul><li>Web Browsers </li></ul></ul><ul><ul><li>Middleware </li></ul></ul><ul><ul><li>Security </li></ul></ul><ul><ul><ul><li>Encryption </li></ul></ul></ul>
  16. 17. Networking Hardware, Software & Connecting Media <ul><li>Media </li></ul><ul><ul><li>Cables </li></ul></ul><ul><ul><ul><li>Coaxial </li></ul></ul></ul><ul><ul><ul><li>Twisted-Pair </li></ul></ul></ul><ul><ul><ul><li>Fiber Optics </li></ul></ul></ul><ul><ul><li>Satellite </li></ul></ul><ul><ul><li>Microwave </li></ul></ul><ul><ul><li>Cellular Phone </li></ul></ul><ul><li>Topologies </li></ul><ul><ul><li>Single-line </li></ul></ul><ul><ul><li>Star </li></ul></ul><ul><ul><li>Ring </li></ul></ul><ul><ul><li>Bus </li></ul></ul>
  17. 19. Internet & E-Commerce <ul><li>Internet </li></ul><ul><ul><li>Network of Networks </li></ul></ul><ul><ul><li>Expansion Rate (Web Presence & Users) </li></ul></ul><ul><ul><li>Most Common Utilization </li></ul></ul><ul><ul><ul><li>Communication </li></ul></ul></ul><ul><ul><ul><li>Data Interchange </li></ul></ul></ul><ul><ul><ul><li>Information Retrieval </li></ul></ul></ul><ul><ul><ul><li>News & Discussion Platform </li></ul></ul></ul><ul><ul><ul><li>And ofcourse new business horizon </li></ul></ul></ul><ul><li>E-Commerce </li></ul><ul><ul><li>E-Transactions, E-Business </li></ul></ul><ul><ul><li>Set of integrated activities </li></ul></ul><ul><ul><ul><li>Simply having a good website will not guarantee success </li></ul></ul></ul><ul><ul><li>Web Presence a key characteristics </li></ul></ul><ul><ul><ul><li>Information regarding Organizational Products/Services </li></ul></ul></ul><ul><ul><ul><li>Mechanism for secure transactions </li></ul></ul></ul>
  18. 20. E-Commerce <ul><li>Types of E-Commerce </li></ul><ul><ul><li>B2C (Business to Consumer) </li></ul></ul><ul><ul><li>B2B (Business to Business) </li></ul></ul><ul><li>Business Transformation </li></ul><ul><ul><li>The Need to develop e-strategies </li></ul></ul><ul><ul><ul><li>Example: CRM (Customer Relation Management) </li></ul></ul></ul><ul><ul><li>The New Way of marketing </li></ul></ul><ul><ul><ul><li>Interactive Marketing </li></ul></ul></ul><ul><ul><ul><li>One-one customer relationship </li></ul></ul></ul><ul><li>The Need for E-Commerce </li></ul><ul><ul><li>Customer Interaction </li></ul></ul><ul><ul><li>Customized services (Multiple Services through single Channel at same time) </li></ul></ul><ul><ul><li>Bypassing traditional intermediaries </li></ul></ul>
  19. 21. E-Commerce…. <ul><li>E-Commerce Essentials </li></ul><ul><ul><li>Merchant Systems </li></ul></ul><ul><ul><ul><li>Online Shopping Mall </li></ul></ul></ul><ul><ul><ul><li>Payment Systems </li></ul></ul></ul><ul><ul><ul><ul><li>Wallets (online payments activities) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Live Payments </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Security Checks </li></ul></ul></ul></ul><ul><ul><li>Publishing Systems </li></ul></ul><ul><ul><li>Community Systems </li></ul></ul><ul><ul><ul><li>Memberships </li></ul></ul></ul><ul><ul><ul><li>Funds & Payments activities </li></ul></ul></ul><ul><li>The Current Picture </li></ul><ul><ul><li>The Bubble Burst </li></ul></ul><ul><ul><li>Failure & Success Stories </li></ul></ul><ul><ul><li>E-Commerce, is it Product/Business Sensitive? </li></ul></ul>
  20. 22. Management Concerns <ul><li>The Need for Network </li></ul><ul><ul><li>Requirement Analysis </li></ul></ul><ul><ul><ul><li>Size of Organization and activities </li></ul></ul></ul><ul><ul><ul><li>Business needs </li></ul></ul></ul><ul><ul><ul><ul><li>Alliances </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Geographical operations </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Integration & Control </li></ul></ul></ul></ul><ul><ul><ul><li>Hardware/Software Choice </li></ul></ul></ul><ul><ul><ul><li>Vendor Selection </li></ul></ul></ul><ul><ul><ul><ul><li>ISPs, Communication Media Vendors </li></ul></ul></ul></ul><ul><li>Telecommunication & Networking Issues </li></ul><ul><ul><li>Security </li></ul></ul><ul><ul><ul><li>Telecommunication devices and the access </li></ul></ul></ul><ul><ul><li>Privacy </li></ul></ul><ul><ul><li>Maintenance </li></ul></ul><ul><ul><ul><li>Keeping the blood flowing in the Network </li></ul></ul></ul><ul><ul><ul><li>Question regarding new technologies and Disaster recovery </li></ul></ul></ul>
  21. 23. Concerns…. <ul><li>Structural Changes </li></ul><ul><li>Cultural Changes </li></ul><ul><ul><li>The issues of face-to-face interaction </li></ul></ul><ul><ul><li>To Cope with faster pace of activities </li></ul></ul><ul><ul><ul><li>The need to respond accurately and precisely on the right time </li></ul></ul></ul><ul><ul><ul><li>Example of Backup Officer/ Information Officer </li></ul></ul></ul><ul><li>Backup Issues </li></ul><ul><ul><li>You can’t simply rely on the Continuity of the Network </li></ul></ul><ul><ul><li>Need to develop alternatives </li></ul></ul><ul><ul><ul><li>Both in the context of technology and strategies </li></ul></ul></ul><ul><ul><li>Many Factors </li></ul></ul><ul><ul><ul><li>Failure of Technology </li></ul></ul></ul><ul><ul><ul><li>Inability of the Users </li></ul></ul></ul><ul><ul><ul><li>Special Situations </li></ul></ul></ul>
  22. 24. References <ul><li>Charles Parker, Thomas Case. (2000). “Management Information Systems : Action & Strategy ”. (2 nd Ed). Chapter 8 </li></ul><ul><li>Kenneth C. Laudon & Jane P. Laudon (2001). “ Management Information Systems: Managing a Digital Firm ”.( 7 th Ed). Chapters 5 & 6 </li></ul><ul><li>James O’Brien. (1998). “Introduction to Information Systems: A Networked Enterprise Perspective ”. (2 nd Ed). Chapter 5, 6, 7 </li></ul>

×