Hybrid Domain Representation Archive (HyDRA) for requirements model synthesis across viewpoints

IEEE´s recommended practices for Software Requirements Specifications (Std 830-1993) require traceability for requirements artifacts. However, common practice, commercial tools, and even popular modeling methodologies hinder the capture and maintenance of traceability links. The creation of a requirements model (explicitly representing functional, data and timing requirements) typically involves accommodating viewpoints from multiple system stakeholders (e.g. multiple end-users and system maintainers). While most acknowledge the need for multiple requirement sources, domain-modeling methodologies and CASE tools poorly address how to construct a single model given input from a variety of sources and how to maintain traceability through the synthesis process. Viewpoint identification has been proposed by other researchers to ensure the capture of requirements imposed by all user perspectives. The paper discusses the Hybrid Domain Representation Archive (HyDRA) tool developed to support viewpoint model resolution