Abstract
AbstractThis paper reports on an investigation of the adequacies and benefits of applying software‐level analysis techniques to system‐level requirements activities, with specific concern for software‐intensive systems. The investigation takes the approach of adapting a well‐defined, mathematically precise, software requirements engineering method to a real‐world, complex, system engineering problem. This case study is a preliminary application of the Software Productivity Consortium's CoRE method, which has been applied to embedded real‐time applications, to developing requirements that will be allocated to the landing capability of a military combat helicopter. This effort takes a step toward model‐based system engineering by addressing some of the representational issues and semantic gaps that make it difficult to model subsystem‐level behavior from the system level without commitment to system architectures and designs. This paper proposes conceptual representations that support multitiered abstraction of performance measures and requirements for analyzing interactions between elements of a system and their external environments.
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