Introduction to Analysis & Design

The purposes of Analysis & Design are:

To transform the requirements into a design of the system-to-be.
To evolve a robust architecture for the system.
To adapt the design to match the implementation environment, designing it for performance.

The Analysis & Design discipline is related to other disciplines, as follows:

The Business Modeling discipline provides a organizational context for the system.
The Requirements discipline provides the primary input for Analysis and Design.
The Implementation discipline implements the design.
The Test discipline tests system designed during Analysis and Design.
The Environment discipline develops and maintains the supporting artifacts that are used during Analysis and Design.
The Project Management discipline plans the project, and each iteration (described in an Iteration Plan).