Coherent Extension, Composition, and Merging Operators in Contract Models for System Design

Author:

Passerone Roberto1,Íncer Romeo Íñigo2,Sangiovanni-Vincentelli Alberto L.2

Affiliation:

1. University of Trento, Trento, Italy

2. University of California, Berkeley, CA

Abstract

Contract models have been proposed to promote and facilitate reuse and distributed development. In this paper, we cast contract models into a coherent formalism used to derive general results about the properties of their operators. We study several extensions of the basic model, including the distinction between weak and strong assumptions and maximality of the specification. We then analyze the disjunction and conjunction operators, and show how they can be broken up into a sequence of simpler operations. This leads to the definition of a new contract viewpoint merging operator, which better captures the design intent in contrast to the more traditional conjunction. The adjoint operation, which we call separation, can be used to re-partition the specification into different viewpoints. We show the symmetries of these operations with respect to composition and quotient.

Publisher

Association for Computing Machinery (ACM)

Subject

Hardware and Architecture,Software

Cited by 9 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Constraint-Behavior Contracts: A Formalism for Specifying Physical Systems;Proceedings of the 21st ACM-IEEE International Conference on Formal Methods and Models for System Design;2023-09-21

2. Contract Replaceability for Ensuring Independent Design using Assume-Guarantee Contracts;Proceedings of the 21st ACM-IEEE International Conference on Formal Methods and Models for System Design;2023-09-21

3. Contract-Based Specification Refinement and Repair for Mission Planning;2023 IEEE/ACM 11th International Conference on Formal Methods in Software Engineering (FormaliSE);2023-05

4. Reasoning over Test Specifications Using Assume-Guarantee Contracts;Lecture Notes in Computer Science;2023

5. From Specification to Implementation: Assume-Guarantee Contracts for Synthetic Biology;2022-04-11

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