Building the MIS
System Development Life Cycle
1
SDLC Models

The Waterfall Model

Prototype Model

The Spiral Model
Final SDLC
Maintenance Cycle
Testing
Cycle
Systems
Investigations
Product:
Feasibility
Study
Systems
Analysis
Systems
Design
Systems
Systems
Implementations Maintenance
Product:
Product:
System
System
Requirements Specifications
Product:
Operational
System
Product:
Improved
System
3
Problems associated with
the Waterfall Model…

Real Time Projects

Uncertainty about requirements

Long Procedure
Prototype Model

Developed on the assumption that it is
often difficult to know all of your
requirements at the beginning of a
project.
Various steps involved in
Prototype Model:






Requirements Definition/Collection
Design
Prototype Creation/Modification
Assessment
Prototype Refinement
System Implementation
6
Problems associated with
the Prototype Model


Prototyping can lead to false
expectations.
Prototyping can lead to poorly
designed systems.
The Spiral Model

Project Objectives




Risk Assessment
Engineering & Production


Customer Communication
Planning
Construction & Release
Planning and Management

Customer Evaluation