Simulation modeling of existing customer requests processing technique in the Express-3 MIS environment
The paper tackles main simulation modeling principles of customer requests parallel processing technique in the Express-3 MIS medium, employing the following algorithm: Customer tapes desirable parameters into a workstation to obtain resulting information Customer sends ready requests for processing in the Express-3 system Web-server of the Express-3 MIS secures individual service channel for each customer request Entered request is processed by the Express-3 MIS server. Hereafter the algorithm is split in accord with the following conditions: 1) Processing takes less than 30 minutes: Upon completion of processing the Express-3 MIS generates the resulting data representing it to the customer 2) Processing takes more than 30 minutes: Processing itself taking 30 minutes Abnormal end of processing of all the current requests in the Express-3 MIS web-server Restarting of the Express-3 MIS web-server within the next minute. The results of experiments No 1 and No 3 outline the existing customer requests processing technique refered to the same web-resources. In the planned commissioning context of Train Reports (OTCPZD) and Correspondences and Financial Results (PZDFINN) workstations the number of customers will be enhanced tenfold. Respectively the intensity of requesting the Express-3 MIS will increase in the same proportion. Experiments No 2 and No 4 indicate the results of investigated process with modified characteristics. With a view of amending the identified deficiencies the authors came to a decision on creating on-line sorting mechanism and carrying out simulation model modification aimed at setting up record-keeping provisions of the mechanism operation in the course of parallel processing of requests from multiple customers.