Proceedings of the Fourth Annual Symposium on Logic in computer science
Model checking and Boolean graphs
ESOP'92 Symposium proceedings on 4th European symposium on programming
A Hybrid Knowledge Representation as a Basis of Requirement Specification and Specification Analysis
IEEE Transactions on Software Engineering - Special issue on software maintenance
Knowledge-Based Software Development for Real-Time Distributed Systems
Knowledge-Based Software Development for Real-Time Distributed Systems
Modular Abstractions for Verifying Real-Time Distributed Systems
CAV '92 Proceedings of the Fourth International Workshop on Computer Aided Verification
On Model-Checking for Fragments of µ-Calculus
CAV '93 Proceedings of the 5th International Conference on Computer Aided Verification
Incremental Model Checking in the Modal Mu-Calculus
CAV '94 Proceedings of the 6th International Conference on Computer Aided Verification
| Hi-index | 0.00 |
The concept of software architecture has recently emerged as a new way to improve our ability to effectively construct large scale software systems. However, there is no formal architecture specification language available to model and analyze complex real-time systems. In this paper, an object-oriented logic-based architecture specification language for real-time systems is discussed. Representation of real-time properties and timing constraints, and their integration with the language to model real-time concurrent systems is given. Architecture based specification languages enable the construction of large system architectures and provide a means of testing and validation. In general, checking the timing constraints of real-time systems is done by applying model checking to the constraint expressed as a formula in temporal logic. The complexity of such a formal method depends on the size of the representation of the system. It is possible that this size could increase exponentially when the system consists of several concurrently executing real-time processes. This means that the complexity of the algorithm will be exponential in the number of processes of the system and thus the size of the system becomes a limiting factor. Such a problem has been defined in literature as the "state explosion problem". We propose a method of incremental verification of architectural specifications for real-time systems. The method has a lower complexity in a sense that it does not work on the whole state space, but only on a subset of it that is relevant to the property to be verified.