Eliciting and acquiring requirements is a key aspect in developing effective requirements for software systems. It is essential not only to get the right requirements, but to get them in a form that is usable throughout the software development process. This poster presentation describes a knowledge-based approach to requirements elicitation and acquisition, whereby "requirements patterns" are used to guide the process. The result of the acquisition process is a set of conceptual graphs [1], a knowledge formalism that will be used for specification, analysis and documentation of software systems.
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