Henriksen, Jesper G. ; Mukund, Madhavan ; Narayan Kumar, K. ; Thiagarajan, P. S. (2002) On message sequence graphs and finitely generated regular MSC languages In: 27th International Colloquium on Automata, Languages, and Programming (ICALP 2000), 09-15 Jul 2000, Geneva, Switzerland.
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Official URL: https://link.springer.com/chapter/10.1007%2F3-540-...
Related URL: http://dx.doi.org/10.1007/3-540-45022-X_57
Abstract
Message Sequence Charts (MSCs) are an attractive visual formalism widely used to capture system requirements during the early design stages in domains such as telecommunication software. A standard method to describe multiple communication scenarios is to use message sequence graphs (MSGs). A message sequence graph allows the protocol designer to write a finite specification which combines MSCs using basic operations such as branching choice, composition and iteration. The MSC languages described by MSGs are not necessarily regular in the sense of [HM+99]. We characterize here the class of regular MSC languages that are MSG-definable in terms of a notion called finitely generated MSC languages. We show that a regular MSC language is MSG-definable if and only if it is finitely generated. In fact we show that the subclass of “bounded” MSGs defined in [AY99] exactly capture the class of finitely generated regular MSC languages.
| Item Type: | Conference or Workshop Item (Paper) | 
|---|---|
| Source: | Copyright of this article belongs to Springer-Verlag. | 
| Keywords: | Regular Language; Labelling Function; Early Design Stage; Message Sequence Chart; Single Connected Component | 
| ID Code: | 114219 | 
| Deposited On: | 25 May 2018 04:53 | 
| Last Modified: | 25 May 2018 04:53 | 
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