Generating Validation Feedback for Automatic Interpretation of Informal Requirements

  • Authors:
  • W. R. Cyre;A. Thakar

  • Affiliations:
  • Virginia Tech, The Bradley Department of Electrical Engineering, Blacksburg, VA 24061-0111/ E-mail: cyre@vt.edu;Intel Corporation, Phoenix, AZ

  • Venue:
  • Formal Methods in System Design
  • Year:
  • 1997

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Abstract

This paper describes a method for validating conceptualmodels of digital systems derived automatically from requirementsexpressed in natural language. Because natural language isambiguous and vague, most statements have multiple interpretations.The approach here is to feed back to the requirements authorsvisualizations of the interpretations of the requirements that havebeen translated to semantic networks. The visualization task is acomponent (the Model Generator) of the ASPIN system for automatically interpreting requirements expressed in naturallanguage and diagrams, analyzing the requirements for consistencyand completeness, and automatically generating engineering modelsin the VHDL language. Visualization is performed in two steps:mapping the semantic networks to compound digraphs followed byplacement of the nodes of the digraphs to generate a display interms of icons representing devices, values, actions and events;and connectives indicating carriers, data flow and controldependency.