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20 Cards in this Set
- Front
- Back
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Data items
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elementary description of things, events, activities, and transcations; of little value
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Information
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data that have been organized so that they have meaning and value to the recipient
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Knowledge
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data and information organized and processed to convey understanding to a current problem or activity
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Classification of IS
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- Organizational Levels
- Functional Area - Support Level - System Architecture - Support Provided |
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Organizational Levels
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Departmental (Functional) IS
- Enterprise IS (ERP Enterprise REsource Planning) - Interorganizational systems (more than 1 organizationa) |
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Functional Area
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- Each functional area has its own IS
- Historical reasons for functional IS - Modern movement away from functional IS to ERP systems |
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Support Level
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Strategic activities: SIS (Strategis IS); EIS (Executive IS used by CEO
- Middle management activities: MIS (mgt. is), DSS (decision support systems) - Operational level activities: TPS (transaction processing systems |
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Classification by System Architecture
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Legacy or Mainframe Based systems. 1 cpu (central processing unit); dumb terminals; risk of system being "down"; popular up to 1980s
- PCs only - stand alone PCs (no mainframes) popular in 1980s; problems of cost and time - Distributed Computing (networked: LAN; WAN); peer-to-peer; client/server; popular since 1990s |
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Classification by Support Provided
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TPS, MIS, DSS, OAS, GSS, EIS, AI, IS, ISS, ES
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TPS
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transaction processing system
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MIS
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Management Information systems
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DSS
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Decision support systems
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OAS
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Office Automation systems
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GSS
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Group Support systems
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EIS
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Executive Information Systems
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AI
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Artificial Intelligence
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IS
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Intelligence systems
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ISS
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Intelligent Support systems
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ES
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Expert systems
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Managerial Issues
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The transition to e-business may be difficult
- Moving systems from legacy to client/server is difficult - How to deal with outsourcing trends? - How much infrastrucutre? - Role of ISD important, often mistreated - Ethical issues involved |
