Adequate requirements validation can prevent errors from propagating into later development phases, and eventually improve the quality of software systems. However, validating natural language requirements is often difficult and error-prone. An effective means of requirements validation for embedded software systems has been to build a working model of the requirements in the form of a physical prototype that stakeholders can interact with. However, physical prototyping can be costly, and time consuming, extending the time it takes to obtain and implement stakeholder feedback. We have developed a requirements validation technique, called Virtual Requirements Prototype (VRP), that reduces cost and stakeholder feedback time by allowing stakeholders to validate embedded software requirements through the interaction with a virtual prototype.
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