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DINAS is a decision support system which enables the solution of various multiobjective transshipment problems with facility location using IBM-PC XT/AT or compatibles. DINAS is prepared as a menu-driven and easy in usage system equipped with a special network editor which reduces to minimum effort associated with input a real-life problem. To illustrate the interactive procedure and the system capabilities we present in this paper using of DINAS to analyse a small testing example. As the test problem we use an artificial part of the real-life model connected with the health service districts reorganization.