Decision Analysis Phase

Purpose of phase is to:

1. Identify Candidate Technical Solutions
2. Analyse Candidate Solutions for feasibility
3. Recommend Candidate System as target solution to be designed

Tasks:

5.1 Identify Candidate Solutions

5.2 Analyse Candidate Solutions

5.3 Compare Candidate Solutions

5.4 Update the Project Plan

5.5 Recommend a system solution

Methodologies:

• Candidate Systems Matrix
• TELCOS feasibility

Feasibility Checkpoint: GO or NO-GO?

Participants:

• System Users
• System Designers (System Builders)
• System Analysts
• System Owners

Deliverables:

• System Proposal (or Request for System Proposal)

Reference: SAD pg 84, 194

FAST Phases

Framework for the

Application of

Systems

Thinking (representative systems development process).

FAST Phases are more detailsed than the classic phases:

• Scope Definition
• Problem Analysis
• Requirements Analysis
• Logical Design
• Decision Analysis
• Physical Design & Integration
• Construction & Testing
• Installation & Delivery

Reference: SAD pg 71, 79