Mis intro
- 1. Information Systems Why Do People Need Information? Individuals - Entertainment and enlightenment Businesses - Decision making, problem solving and control 1
- 2. Data, Information, and Systems Data vs. Information Data A “given,” or fact; a number, a statement, or a picture Represents something in the real world The raw materials in the production of information 2
- 3. Information Data that have meaning within a context Data in relationships Data after manipulation 3
- 4. Data, Information, and Systems Data Manipulation Example: customer survey Reading through data collected from a customer survey with questions in various categories would be time-consuming and not very helpful. When manipulated, the surveys may provide useful information. 4
- 5. Data, Information, and Systems Generating Information Computer-based ISs take data as raw material, process it, and produce information as output. Figure 1.1 Input-process-output 5
- 6. Data, Information, and Systems What Is a System? System: A set of components that work together to achieve a common goal Subsystem: One part of a system where the products of more than one system are combined to reach an ultimate goal Closed system: Stand-alone system that has no contact with other systems 6 Open system: System that interfaces with other
- 7. Data, Information, and Systems Figure 1.3 Several subsystems make up this corporate accounting system. 7
- 8. Data, Information, and Systems Information and Managers Systems thinking Creates a framework for problem solving and decision making. Keeps managers focused on overall goals and operations of business. 8
- 9. Data, Information, and Systems Figure 1.5 Qualities of humans and computers that contribute to synergy 9
- 10. Data, Information, and Systems The Benefits of Human-Computer Synergy Synergy When combined resources produce output that exceeds the sum of the outputs of the same resources employed separately Allows human thought to be translated into efficient processing of large amounts of data 10
- 11. Data, Information, and Systems Figure 1.6 Components of an information system 11
- 12. Data, Information, and Systems The Four Stages of Data Processing Input: Data is collected and entered into computer. Data processing: Data is manipulated into information using mathematical, statistical, and other tools. Output: Information is displayed or presented. Storage: Data and information are maintained for 12
- 13. Why Study IS? Information Systems Careers Knowledge Workers Systems analyst, specialist in enterprise resource planning (ERP), database administrator, telecommunications specialist, consulting, etc. Managers and non-managers Employers seek computer-literate professionals who know how to use information technology. Computer Literacy Replacing Traditional Literacy 13 Key to full participation in western society