Построение Use Case Diagram(s)

* Requirements Specification: * Full use case diagram(s) defining collections of use cases and their interactions with actors covering the whole functionality of the new system; (20) * Use case specifications for 10 key use-cases, with main and alternative course of actions made clear, actors defined, pre- and post-conditions stated and all interactions specified; (15) * Indexed list of all use cases prioritised according to users’ priorities and impact of projected risks during development (i.e., time and budget problems). This should help drive the evolution of the design and implementation tasks. (5)