Abstract This paper studies the computer simulation event probability using Quality of Service parameters. The reference model is built with a single server queuing system when the service disciplines are FIFO and LIFO. Simulation results for the queuing systems [X]/M/1/N M/[X]/1/N and [X]/[X]/1/ N are presented at the end.... This paper studies the computer simulation event probability using Quality of Service parameters. The reference model is built with a single server queuing system when the service disciplines are FIFO and LIFO. Simulation results for the queuing systems [X]/M/1/N M/[X]/1/N and [X]/[X]/1/ N are presented at the end. Read More Read Less

Abstract GinisED is a geographic information system specifically designed for the needs of electric power utility companies Ginis ED was created by the CG&GIS lab of the Faculty of Electronic Engineering of the University of Niš and is used in ED JugoISTok Niš. One of the most essential features of GinisED is the tools for the spatial analysis of the electrical... GinisED is a geographic information system specifically designed for the needs of electric power utility companies Ginis ED was created by the CG&GIS lab of the Faculty of Electronic Engineering of the University of Niš and is used in ED JugoISTok Niš. One of the most essential features of GinisED is the tools for the spatial analysis of the electrical power supply network, the potential or actual events in the electric power supply network as well as the risk factors for a particular geographic area. To support effective spatial analysis, we have created a special data model to represent the electrical power supply network within GinisED. This data model is a mix of a topological model (where nodes and edges are used to represent geographic information) and a typical graph data structure for representing the attributes of the electric network. Read More Read Less