At Ericsson IoDT test department testing tools are used to control the traffics between the EU and the eNB to check the typical problems issues. By storing these problems in a log file will help mobile vendors to eliminate the mentioned problems by developing solutions for more significant products. The IoDT needed to develop the testing results even further for more specific results. The purpose of this thesis is to developing the LogTool to make it easier for the IoDT testing group to read the log files, whereas the implemented results from the log files simplifies for the testing group. To make this happens; the LogTool was developed by creating a new Analyzer that analyses the log file and presents the results in a way which makes it easier to be read. The Analyzer was created using Eclipce program as RCP plug-in, in Java programming language. The new Analyzer managed to print the results in a simpler way for the CQI and MCS test. Basically, the new Analyzer was created and implemented in standardized way that make it possible to be developed even further in the future without losing its’ functionality. This procedure was achieved regarding the needed requirements of Ericsson and Linköping University. This document will guide the reader through the steps that used to accomplish the project with illustrating figures, methods and code examples in order to give a closer vision of the work.