Message Sequence Chart (MSC) - A Survey of the new CCITT Language for the Description of Traces within Communication Systems

Jens Grabowski, Ekkart Rudolph

Abstract

Message Sequence Charts (MSCs) are a widespread means for description and graphical visualisation of selected system runs within distributed systems, especially telecommunication systems. Various kinds of MSCs with similar expressive power are used frequently within industry and standardisation bodies. Therefore, the CCITT (Comité Consultatif International Télégraphique et Téléphonique) attempts to harmonise their use by means of the new standard language Message Sequence Chart (MSC) in 1992. This paper presents a motivation for the MSC standardisation. The history of the standardisation process is briefly sketched. The MSC language is introduced. Some language constructs which may need further elaboration are pointed out and possible enhancements are proposed. Finally, an approach towards the definition of a clear MSC semantics is described.
Keywords: 
CCITT, Formal Description Technique (FDT), Distributed System, Message Sequence Chart (MSC), SDL, Trace Language
Document Type: 
Journal Articles
Journal: 
CCITT
Pages: 
30-48
Month: 
5
Year: 
1993
2011 © Software Engineering For Distributed Systems Group

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