Communicating sequential processes
Communicating sequential processes
Communication and concurrency
The Z notation: a reference manual
The Z notation: a reference manual
Using Z: specification, refinement, and proof
Using Z: specification, refinement, and proof
CSP-OZ: a combination of object-Z and CSP
FMOODS '97 Proceedings of the IFIP TC6 WG6.1 international workshop on Formal methods for open object-based distributed systems
Blending Object-Z and Timed CSP: an introduction to TCOZ
Proceedings of the 20th international conference on Software engineering
The Object-Z specification language
The Object-Z specification language
Specification, Refinement and Verification of Concurrent Systems—An Integration of Object-Z and CSP
Formal Methods in System Design
A Semantic Integration of Object-Z and CSP for the Specification of Concurrent Systems
FME '97 Proceedings of the 4th International Symposium of Formal Methods Europe on Industrial Applications and Strengthened Foundations of Formal Methods
Model-Checking CSP-OZ Specifications with FDR
IFM '99 Proceedings of the 1st International Conference on Integrated Formal Methods
Refinement and Verification of Concurrent Systems Specified in Object-Z and CSP
ICFEM '97 Proceedings of the 1st International Conference on Formal Engineering Methods
Abstract Specification in Object-Z and CSP
ICFEM '02 Proceedings of the 4th International Conference on Formal Engineering Methods: Formal Methods and Software Engineering
Extraction of Abstraction Invariants for Data Refinement
ZB '02 Proceedings of the 2nd International Conference of B and Z Users on Formal Specification and Development in Z and B
An Integration of Real-Time Object-Z and CSP for Specifying Concurrent Real-Time Systems
IFM '02 Proceedings of the Third International Conference on Integrated Formal Methods
| Hi-index | 0.00 |
State-based refinement relations have been developed for use on the Object-Z components in an integrated Object-Z / CSP specification. However this refinement methodology does not allow the structure of a specification to be changed in a refinement, whereas a full methodology would allow concurrency to be introduced during the development life-cycle. In this paper we tackle these concerns and discuss refinements of specifications written using Object-Z and CSP where we change the structure of the specification when performing the refinement. In particular, we develop a set of structural simulation rules which allow a single Object-Z component to be refined to a number of communicating or interleaved classes. We prove soundness of these rules and illustrate them with a small example.