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Markov based decision support for cost-optimal response in security management

: Hild, J.; Ott, J.; Fischer, Y.; Glökler, C.

Postprint urn:nbn:de:0011-n-1529370 (328 KByte PDF)
MD5 Fingerprint: 2db64f686f2f5a2aa2e2a34b40f8e5bc
Erstellt am: 11.2.2011

French, S.:
7th International Conference on Information Systems for Crisis Response and Management, ISCRAM 2010. Proceedings : Defining crisis management 3.0, Crowne Plaza Hotel, Seattle, May 2nd - May 5th, 2010
Seattle/Wash., 2010
5 S.
International Conference on Information Systems for Crisis Response and Management (ISCRAM) <7, 2010, Seattle/Wash.>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IOSB ()
security management; decision support tool; situation awareness; cost-optimal response; continuous-time Markov decision process; user interface

In this contribution, we introduce a prototype of a decision support tool for cost-optimal response in security management. The threat situation of a closed infrastructure, exposed to multiple threats, and the corresponding response actions are modeled by a continuous-time Markov decision process (CMDP). Since the CMDP cannot be solved exactly for large infrastructures, the response actions are determined from a heuristic, based on an index rule. The decision support tool's user interface displays the infrastructure's current threat state and proposes the heuristic response actions to the decision maker. In this way, global situation awareness can be enhanced and the decision maker is able to initiate an almost cost-optimal response action in short time.