Timed High-Level Message Sequence Charts for Real-Time System Design

  • Tai Hyo Kim
  • Sung Deok Cha
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4320)


Existing notations for expressing time constraints in high-level message sequence charts (HMSC) may cause ambiguity when used with HMSC compositions such as alternative and iteration. To overcome such limitation, we propose timed high-level message sequence charts (THMSC) which include an unambiguous subset of time constraints and timed edges as a new complementary notation. THMSC is effective in accurately specifying popular requirement patterns such as watchdog timers and periodic tasks. We present the formal semantics and demonstrate the effectiveness of THMSC using a real-world example that formalizes timing requirements for Korea Multi-Purpose Satellite (KOMPSAT) software.


Time Slot Partial Order Formal Semantic Sequential Composition Parallel Composition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Tai Hyo Kim
    • 1
  • Sung Deok Cha
    • 1
  1. 1.Division of Computer ScienceKorea Advanced Institute of Science and TechnologyDaejeonRepublic of Korea

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