Situation-Aware Based Self-adaptive Architecture for Mission Critical Systems

Authors:
Sangsoo Kim;Jiyong Park;Heeseo Chae;Hoh Peter In
Affiliations:
College of Information & Communications, Korea University, 5-ga, Anam-dong, Seogbuk-gu, Seoul 136-701, Korea;College of Information & Communications, Korea University, 5-ga, Anam-dong, Seogbuk-gu, Seoul 136-701, Korea;College of Information & Communications, Korea University, 5-ga, Anam-dong, Seogbuk-gu, Seoul 136-701, Korea;College of Information & Communications, Korea University, 5-ga, Anam-dong, Seogbuk-gu, Seoul 136-701, Korea
Venue:
ICESS '07 Proceedings of the 3rd international conference on Embedded Software and Systems
Year:
2007

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Abstract

Conventional mission-critical systems cannot prevent mission failure in dynamic battlefield environments in which the execution situations or missions change abruptly. To solve this problem, self-adaptive systems have been proposed in the literature. However, the previous studies do not offer specifics on how to identify changes in a system situation or to transform situation information into the actions the systems must take in dynamic environments. This paper proposes a situation-awareness based self-adaptive system architecture (SASA) to support more efficient adaptation and, hence, achieve more accurate and successful missions, even in dynamic execution environments. A case study for air defense systems (ADS) using tests in a HLA/TRI-based real-time distributed simulation environment was implemented.