The primary goals of the Options evaluation phase are to identify
stakeholder requirements to sufficient detail to allow 3rd parties
to quote for work and to be able to investigate the possible solution options
that will meet these requirements (E.g. in house bespoke development, best of
breed, or 3rd party development). To do this, an initial
requirements model is developed where most use cases are listed and described
at a high level. This will define the scope of the project, and potentially
start the development of a user interface (UI) prototypes to assess solutions.
By the end of this phase a solution is chosen and the architecture agreed.
Agreement is reached with stakeholders on:
- Scope of the project
- All initial requirements are identified (albeit without much detail)
- Risks have been identified and plans agreed for their management
- The technical solution has relevant architectural approval
- Best solution is agreed that meets the requirements
- Initial infrastructure design has been agreed
As a rough guide about 1%-5% of overall development estimate is spent on this stage.