CI-490: 10.13.99

http://members.tripod.com/~ci490
Instructor: Ed Quigley 724.774.2088

Chapter 15: Systems Development

Developing a New IS within a planned framework.

We develop new S-IS's in response to: an opportunity, a problem, or a directive.
SDLC: Systems Development Life Cycle, Fig. 15.1
    Analysis
  1. Investigation
  2. Tech Feasibility Study
  3. Economic Feasibility Study
  4. Operational Feasibility Study
  5. Requirements Definition
    Design
  • Logical Design.
    Data Flow Diagrams p.452
  • Physical Design
  • Construction
  • System Testing
    Implementation
  • Training
  • Conversion:
    • Parallel
    • Phased
    • Cold Turkey / Cutover
    • Pilot Conversion
  • Support. (Maintenance, Debugging, Updating). 80% of expense
Please Note:
Analysis Precedes Design!
You need Requirements to know if you've built it!