Information Systems: Concepts, Trends, Issues

1. Information Systems:Concepts, Trends, Issues Ch 1-3 Turban, McLean, Wetherbe

2. Why Study Information Technology? Moore’s Law: Chip capacity doubles every 18 Months.

3. The Value of Technology • Electric Power Growth Trends

4. The Value of Technology • IT Growth Trends

5. Next Generation

6. Information DATA: facts that are needed to operate a business. INFORMATION: data organized into a form needed by an application. INFORMATION SYSTEM: hardware, software and procedures that maintain data and convert it into usable information.

7. Information System • An information system (IS) collects, processes, stores, analyzes, and disseminates information for a specific purpose. Like any other system, an information system includes inputs(data, instructions) and outputs (reports, calculations). It processes the inputs by using technology such as PCs and produces outputs that are sent to users or to other systems via electronic networks and a feedback mechanism that controls the operation. Control Input Process Feedback Output

9. Accuracy Completeness Cost Flexibility Relevance Granularity Timeliness Verifiability Value Properties of Data

10. Basics of the MIS Discipline • Technology • Computing Telecommunications • Development • Data Process Network • Management • Operations Strategy

11. Technology Development Management

12. Computer Based Information System Application Hardware • Hardware • Software • Data • Network • Procedures • People Software Data People More than hardware and software

13. Information System – Primary Purpose Collects data, processes it into information then converts information into knowledge for a specific purpose. • Data • Elementary description of things, events, activities, and transactions that are recorded, classified, and stored, but not organized to convey any specific meeting • Information • Data that has been organized so that they have meaning and value to the recipient • Knowledge • Information that has been organized and processed to convey understanding, experience and expertise as they apply to a current problem or activity

14. Information System - Classification By Support Function • 5-year sales trend • Profit Planning • 5-year budget forecasting • Product development Executive Support System • Sales Management • Inventory Control • Annual budget • Production Scheduling • Cost Analysis • Pricing Analysis Management Information System Decision Support System Intelligent Support Systems • Simulation • Pgm coding • System support • Word Processing • Desktop Publishing Knowledge Management System Office Automation System • Order Processing • Fulfillment • Material Movement • A/R, A/P, GL • Payroll • POS Transaction Processing System

15. Functions of an Information System Collect Process Store = Type I Retrieve Analyze Disseminate Type II =

16. Information Architectures Type I Systems Transaction based systems with many low value operations Type II Systems Decision enhancing system with few high value operations

17. Development Approaches • Systems Development Life Cycle (SDLC) • Prototyping • Purchasing • Outsourcing

18. Competitive Environment Global Economy New Economics Complex Environment

20. The Internet

21. Technology Environment