Evaluating degree of systems' dependability with semi-structured assurance case

Jin Nakazawa, Yutaka Matsuno, Hideyuki Tokuda

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

Abstract

Due to the continuous penetration of computer systems into our daily lives, their dependability is critical to the users. Particularly, ubiquitous embedded systems, such as elderly care and medication management, need to provide a high degree of dependability, since their failure may result in loss of a human life. Developers, users, and other stakeholders of such systems thus require mutual agreement on the degree of systems' dependability. In this paper, we propose to use an extended form of assurance cases, called D-Case, to describe how a system achieves dependability with meaningful evidences. One of the two major features of our scheme is to use a common tree structure in D-Case to enable developers and users of different systems to compare their dependability. The other is a scheme to calculate the degree of dependability from D-Case. Users can learn the degree more intuitively than grasping multiple metrics like MTBF and MTTF, or reading through a D-Case itself.

Original languageEnglish
Title of host publicationProc. of the 13th European Workshop on Dependable Computing, EWDC 2011
Pages111-112
Number of pages2
DOIs
Publication statusPublished - 2011 Jun 16
Event13th European Workshop on Dependable Computing, EWDC 2011 - Pisa, Italy
Duration: 2011 May 112011 May 12

Publication series

NameACM International Conference Proceeding Series

Other

Other13th European Workshop on Dependable Computing, EWDC 2011
CountryItaly
CityPisa
Period11/5/1111/5/12

ASJC Scopus subject areas

  • Software
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications

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  • Cite this

    Nakazawa, J., Matsuno, Y., & Tokuda, H. (2011). Evaluating degree of systems' dependability with semi-structured assurance case. In Proc. of the 13th European Workshop on Dependable Computing, EWDC 2011 (pp. 111-112). (ACM International Conference Proceeding Series). https://doi.org/10.1145/1978582.1978607