Author(s)

G.E. Haramis & V. Karakatsanis

Abstract

: The aim of this paper is to present the results of our survey on the applications and problems arising from parallel processing in the area of Airlines Resevations Systems. We used the Reservation System of Olympic Airways as our basic model. We shall describe the systems, the problems which arise and finally we shall give our propositions and solutions. 1 Introduction When we speak today of parallel processing or parallelism we always mean the simultaneous execution of jobs, jobsteps, programs, routines, subroutines, loops or statements.* Within the family of the real time systems, parallel processing means that the same transaction is executed at the same time with more than one system/ Parallelism can be exploited at three different levels: the algorithm level, the program level an

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