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20 Cards in this Set

  • Front
  • Back
Data items
elementary description of things, events, activities, and transcations; of little value
Information
data that have been organized so that they have meaning and value to the recipient
Knowledge
data and information organized and processed to convey understanding to a current problem or activity
Classification of IS
- Organizational Levels
- Functional Area
- Support Level
- System Architecture
- Support Provided
Organizational Levels
Departmental (Functional) IS
- Enterprise IS (ERP Enterprise REsource Planning)
- Interorganizational systems (more than 1 organizationa)
Functional Area
- Each functional area has its own IS
- Historical reasons for functional IS
- Modern movement away from functional IS to ERP systems
Support Level
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
Classification by System Architecture
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
Classification by Support Provided
TPS, MIS, DSS, OAS, GSS, EIS, AI, IS, ISS, ES
TPS
transaction processing system
MIS
Management Information systems
DSS
Decision support systems
OAS
Office Automation systems
GSS
Group Support systems
EIS
Executive Information Systems
AI
Artificial Intelligence
IS
Intelligence systems
ISS
Intelligent Support systems
ES
Expert systems
Managerial Issues
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