Journal of Systems and Software · 1998 · 27 citations · 15 references
ComputingComputer ScienceFormal MethodsRequirements EngineeringDesign SpecificationFormal Language FoundationsSoftware ConstructionSoftware DesignSpecification DevelopmentSpecification LanguagesFormal ModelingFormal SpecificationsSpecification Notation
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Specifications are not (necessarily) executable
Ian J. Hayes, Cliff B. Jones · Software Engineering Journal · 1989 · 198 citations
Specifications are (preferably) executable
Norbert E. Fuchs · Software Engineering Journal · 1992 · 173 citations