In this phase, I use the personas that were defined in the Modeling phase to develop a high-level set of user requirements.

I consider the personas' environments and skills, and construct context scenarios derived from their goals. For a business system, the personas' environments are driven by the organization in which they work; thus, the user needs and business objectives come together in the context scenarios. This leads to a set of needs that must be satisfied if the product is to have the desirability it needs to succeed in the marketplace.