The Z notation: a reference manual
The Z notation: a reference manual
A Case-Study in Timed Refinement: A Mine Pump
IEEE Transactions on Software Engineering - Special issue: specification and analysis of real-time 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
FM '99 Proceedings of the Wold Congress on Formal Methods in the Development of Computing Systems-Volume II
IFM '99 Proceedings of the 1st International Conference on Integrated Formal Methods
A Set-Theoretic Model for Real-Time Specification and Reasoning
MPC '98 Proceedings of the Mathematics of Program Construction
Extending Object-Z for Specifying Real-Time Systems
TOOLS '97 Proceedings of the Tools-23: Technology of Object-Oriented Languages and Systems
Defining Differentiation and Integration in Z
ICFEM '98 Proceedings of the Second IEEE International Conference on Formal Engineering Methods
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
A Formal Model of the UML Metamodel: The UML State Machine and Its Integrity Constraints
ZB '02 Proceedings of the 2nd International Conference of B and Z Users on Formal Specification and Development in Z and B
The Formal Semantics of the Domain Specific Modeling Language for Multiagent Systems
Agent-Oriented Software Engineering IX
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This paper presents a means of structuring specifications in real-time Object-Z: an integration of Object-Z with the timed refinement calculus. Incremental modification of classes using inheritance and composition of classes to form multi-component systems are examined. Two approaches to the latter are considered: using Object-Z's notion of object instantiation and introducing a parallel composition operator similar to those found in process algebras. The parallel composition operator approach is both more concise and allows more general modelling of concurrency. Its incorporation into the existing semantics of real-time Object-Z is presented.