The purpose of this bachelor thesis under the topic of „Manual Testing Cost Reduction by Using an Automated Tool for Preconditions Creation“ is to present a newly created tool, which itself would have an ability to prepare all preconditions for testing in specific company. In the body of the thesis the need of this newly created system is explained, as well as a description of it provided. Furthermore, the posibility of adjustment of the new tool to various WEB systems is analysed, plans of improvement provided. The result of research was that the new tool was successfully created and now is used in performing everyday‘s tasks. The main identified benefit of the tool was that it helped to greatly reduce the consumption of time for workers w...