| J. C. Bicarregui and J. S. Fitzjerald. Proof in VDM: A Practioner's Guide. Springer-Verlag, 1994. |
....the inconsistency described in subsection 3.4 occurs, but is not addressed. The language of VDM includes loose let expressions of the form let x:T be s.t. P in E: Its intended meaning is: E with x bound to an arbitrary value satisfying P . However, its axiomatization has proved elusive, and [Bicarregui et al. 1994] suggest the approach taken by [Larsen and Hansen 1996] Larsen and Hansen [Larsen and Hansen 1996] present a denotational semantics for a functional language with under determinism. The type language is extended by comprehension types of the form fE j x:T ffl Pg, and the expression language is ....
Bicarregui, J. C., Fitzgerald, J. S., Lindsay, P. A., Moore, R., and Ritchie, B. 1994. Proof in VDM: A practioner's guide. FACIT. Springer Verlag.
....a specification towards an efficienct implementation, where each of the refinement steps is provably correct. This then guarantees the correctness of the final implementation with respect to the initial specification. Advances in this area have been made particularly with the VDM and CIP projects [10, 9]. Evaluation and maintenance: Although not much exploited in practice yet (neither in Software Engineering nor in Knowledge Engineering) the use of a system description which is at the same time precise and at a high level of abstraction would be a great asset during the maintenance of a system, ....
....temporal logic. A formal reasoning calculus together with automated proof support elicits the full power of formalisation as it becomes possible to prove implicit properties of a specified system (e.g. 37, 38] Approaches in Software Engineering like VDM already deliver good results in this area [10]. Validation and Verification Closely related to such proofs of properties of a specification is the use of these specification languages for validation and verification. This defines a strong link to work done in program verification (see [18, 28] for a survey and [38] for an approach using ....
J. Bicarregui, J. Fitzgerald, P. Lindsay, R. Moore, and B. Ritchie. Proof in VDM: A Practioner's Guide. Springer Verlag, 1994.
No context found.
J. C. Bicarregui and J. S. Fitzjerald. Proof in VDM: A Practioner's Guide. Springer-Verlag, 1994.
Online articles have much greater impact More about CiteSeer.IST Add search form to your site Submit documents Feedback
CiteSeer.IST - Copyright Penn State and NEC