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In the field of simulations storing and exchanging simulation data are important tasks. The quantity of simulation data can be rather big and at the same time this data can appear in different formats. The conversion of big quantities of data can be extremely timeconsuming. In this article we focus on simulations in telecommunications. Therefore we have studied the needs of the telecommunication community and defined a reference model of a simulation process. According to the needs we have developed a software tool CostGlue, which represents a central repository for data produced with different types of simulation tools and acts as a converter of different output formats into different input formats. CostGlue has modular software architecture. This enables further development and contributions from any other research sphere of activity. The core of the software tool represents the application CoreGlue responsible for communicating with the database. CoreGlue represents unified interface for writing to the database and reading from it. Specific functions like import and export of data and different mathematical calculations are represented as a set of self-described modules, which are loaded as necessary. The graphic user interface is introduced as a web application for the simplicity of use and effective remote access to the application. The software package CostGlue is going to be released as free software with the possibility of further development.

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