Controllable-choice Message Sequence Graphs
| Authors | |
|---|---|
| Year of publication | 2013 |
| Type | Article in Proceedings |
| Conference | Proceedings of Mathematical and Engineering Methods in Computer Science, 8th Doctoral Workshop (MEMICS 2012), Selected Papers |
| MU Faculty or unit | |
| Citation | |
| Web | http://link.springer.com/chapter/10.1007%2F978-3-642-36046-6_12 |
| Doi | http://dx.doi.org/10.1007/978-3-642-36046-6_12 |
| Field | Informatics |
| Keywords | message sequence charts; realizability; local choice |
| Attached files | |
| Description | We focus on the realizability problem of Message Sequence Graphs (MSG), i.e. the problem whether a given MSG specification is correctly distributable among parallel components communicating via messages. This fundamental problem of MSG is known to be undecidable. We introduce a well motivated restricted class of MSG, so called controllable-choice MSG, and show that all its models are realizable and moreover it is decidable whether a given MSG model is a member of this class. In more detail, this class of MSG specifications admits a deadlock-free realization by overloading existing messages with additional bounded control data. We also show that the presented class is the largest known subclass of MSG that allows for deadlock-free realization. |
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