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

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Presentation on theme: "Information Systems: Concepts, Trends, Issues Ch 1-3 Turban, McLean, Wetherbe."— Presentation transcript:

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 l Electric Power Growth Trends

4 The Value of Technology l 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 l 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.


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

10 Basics of the MIS Discipline Technology Computing Telecommunications Development DataProcessNetwork Management OperationsStrategy

11 Technology Development Management

12 Technology Development Management

13 Computer Based Information System l Hardware l Software l Data l Network l Procedures l People Hardware Software People Data Application More than hardware and software

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

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

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

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

18 Fundamental Issues l Impacts of Technology l Hardware and Architectures l System Development »Data »Process »Network l Management of Technology l Strategic Evolution

19 Systems Approach Components that work together for a common goal. l Fundamental components Objects Relationships BoundariesLevels l IPO Model InputProcess Output

20 Development Approaches l Systems Development Life Cycle (SDLC) l Prototyping l Purchasing l Outsourcing

21 Technology Development Management

22 IS Organization l Steering Committee l IS Management »Security l Operations l Development l Data Administration l Information Architecture l Telecommunications

23 IS Roles l Manager l Operations l Help Desk/Information Center l Analyst l Programmer l Systems Programmer

24 Competitive Environment Global Economy New Economics Complex Environment

25 Competitive Environment Global Economy Increased competition 24 hour operation National and cultural incompatibilities New Economics Complex Environment

26 Competitive Environment Global Economy New Economics Information revolution Downsizing and flattening Information as an asset Complex Environment


28 Competitive Environment Global Economy New Economics Complex Environment Business alliances Decreased budgets Constant change

29 Organization and Management Changes Improvement Programs: Business Process Reengineering Total Quality Management Outsourcing Just in Time Processes Time to Market Reduction Empowerment of Employees & Collaborative Work Customer-Focused Approach Improved Productivity

30 Trends in Information Technology l Cost-Performance Improvement Moore’s Law l Information Superhighway l Data Warehousing and Data Mining l Networked Computers and Client/Server Architecture l User Friendly Interfaces (GUI, etc.) l Storage and Memories l Multimedia l Object-Oriented Environments l Emerging Technologies l Compactness and Portability

31 Issues l Avoiding failures l Recognizing IT Opportunities l Placing Ownership of the IT Components

32 The Internet

33 Technology Environment

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