ISSN : 1796-217X
Volume : 3    Issue : 6    Date : June 2008

Model-Driven User Requirements Specification using SysML
Michel dos Santos Soares and Jos Vrancken
Page(s): 57-68
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Requirements engineering is an important phase in a system’s life cycle. When poorly performed,
various problems may occur, such as failures, cost overrun and delays. The increasing complexity
of systems makes requirements engineering activities both more important and more difficult.
Model-driven engineering, in which models are the main artifact during system development, is an
emergent approach that tries to address system complexity by the intense use of models. This
article proposes a model-driven approach to requirements engineering based on SysML
Requirements and Use Case Diagrams. The main advantages are that user requirements are
graphically modeled, their relationships are explicitly mapped, and system decomposition is
considered in the early system development activities. In addition, requirements traceability is
enhanced by using the SysML Requirements tables. The approach is illustrated by a list of user
requirements for a road traffic management system.

Index Terms
Requirements Engineering, Model-driven Engineering, SysML, UML