In 2010 Simplexion Ltd. had the request of the evaluation of the introduced Integrated Thermal System During review Simplexion Ltd. had to evaluate the project management from methodology and IT side relating to this the product and all the documentation what was prepared during the project. The starting point was the customer's specification. During the evaluation Simplexion Ltd. was examine the realization of the requirements thru the development methods (specifications, unit test, integration test, acceptance test) furthermore during the go live process. The experiences were summarize in a report what Simplexion Ltd. handed over the customer together the evidences.