Research of reliability technology in heterogeneous autonomous decentralized assurance systems

Akio Shiibashi*, Takashi Kuroda, Motoharu Yamana, Kinji Mori

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)


Reliability, the conventional measure, is defined as whether a system can continue the operation without failure. It indicates 0 or 1 and is not suitable for systems with functions gradually increasing and decreasing. Functional Reliability, on the other hand, scales a system as integration of functions by subsystems. So it can reflect how the system is changing. Autonomous Decentralized Systems, for example, can continue the operation even when some of the subsystems fail. In this case, Functional Reliability is more appropriate to grasp the state of the system. This paper introduces Functional Reliability to evaluate the IC Card Ticket System, one of the Autonomous Decentralized Assurance Systems. Two models of the centralized system model and the decentralized system model are prepared, simulated, and compared. According to the results, the decentralized system model shows higher Functional Reliability. In reality, the IC Card Ticket System is operating very well without any fatal errors, which proves the usefulness of Functional Reliability.

Original languageEnglish
Title of host publicationProceedings - Eighth International Symposium on Autonomous Decentralized Systems, ISADS 2007
Number of pages8
Publication statusPublished - 2007
Externally publishedYes
Event8th International Symposium on Autonomous Decentralized Systems, ISADS 2007 - Sedona, AZ
Duration: 2007 Mar 212007 Mar 23


Other8th International Symposium on Autonomous Decentralized Systems, ISADS 2007
CitySedona, AZ

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Software

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