MIS- lecture-1
- 1. MIS 715 Eaton Fall 2001 1 Information Systems • Why Do People Need Information? – Individuals - Entertainment and enlightenment – Businesses - Decision making, problem solving and control
- 2. MIS 715 Eaton Fall 2001 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 – Information • Data that have meaning within a context • Data in relationships • Data after manipulation
- 3. MIS 715 Eaton Fall 2001 3 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. MIS 715 Eaton Fall 2001 4 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. MIS 715 Eaton Fall 2001 5Figure 1.2 Characteristics of useful information Data, Information, and Systems • Information in Context
- 6. MIS 715 Eaton Fall 2001 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 – Open system: System that interfaces with other
- 7. MIS 715 Eaton Fall 2001 7 Data, Information, and Systems Figure 1.3 Several subsystems make up this corporate accounting system.
- 8. MIS 715 Eaton Fall 2001 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.
Editor's Notes
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