Design and elaboration phase produces design, architecture and functional prototype.

Design and implementation plans are set down with:

• Design specification
• User interface specification
• Test plan, and outline of test cases
• Functional prototype that illustrates the most important usage cases, and proves technical feasibility of the architecture
• Project schedule

Project team composition
This is an architecture-focused stage. It is supported by software development and software QA as necessary to achieve stable architecture.

Project Inception Phase
Design and Elaboration Phase
Construction and Implementation Phase
Beta-testing and Completion Phase