Systems Development Life Cycle SDLC

1
Systems Development Life Cycle (SDLC)
2
Waterfall
Project Identification and Selection
Project Initiation and Planning
Analysis
Design
Implementation
Maintenance
3
Evolutionary SDLC
Identify
Maintenance
Initiation
Implementation
Analysis
Design
4
Why Systems Fail

• Did not support business strategies
• Poor planning and project management
• Failure to understand user requirements
• Poor cost estimating and benefit analysis
• Design defects
• Incompatible or inadequate technology
• Lack of adequate controls
• Unstructured, unmaintainable software

5
What Makes Successful Systems

• User involvement
• Systems planning and project management
• Developing alternative designs
• Functional design guides detailed design
• Complete, concise, and clear documentation
• Using a coordinated, planned approach
• Post implementation reviews
• Designing for systems maintenance