IMA Journal of Management Mathematics Advance Access published online on July 10, 2008
IMA Journal of Management Mathematics, doi:10.1093/imaman/dpn011
Service facilities with Markovian demand and deterministic supply with an application in repair modelling

School of Informatics, University of Bradford, Bradford, West Yorkshire BD7 1DP, UK
Email: a.csenki{at}bradford.ac.uk
Received on 24 September 2007. Accepted on 3 June 2008.
Recent research by the author was concerned with systems modelled by two processes, the supply process and the demand process. The systems modelled thereby were such that the goods produced were not storable and were lost if not consumed immediately. In the present paper, we continue this earlier research, now assuming that supply is deterministic and demand is modelled by an irreducible Markov process with a finite, partitioned state space. Combining an earlier result with propositional calculus, a closed-form expression is obtained for the probability that demand will be met by supply during the first k supply periods. As an application, two repair disciplines for a small computer network will be examined. The computational tool used is SCILAB, a free numerical package run on LINUX.
Keywords: Markov model; propositional calculus; supply and demand; transient analysis; repair; SCILAB