System Development Life Cycle Building the MIS System Development Life Cycle

SDLC Models The Waterfall Model Prototype Model The Spiral Model

Final SDLC Maintenance Cycle Testing Cycle Systems Investigations Analysis Systems Design Systems Implementations Systems Maintenance Product: Feasibility Study Product: System Requirements Product: System Specifications Product: Operational System Product: Improved System

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

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 Customer Communication Planning Risk Assessment Engineering & Production Construction & Release Planning and Management Customer Evaluation