The aim of the thesis is to analyze and evaluate the current PLM (Product Life cycle Management) implementation in a medium enterprise. A case study is taken into consideration: Cubogas S.r.l., the company in which I had the opportunity to carry out an internship, will be examined as a real-life example. The thesis will analyze the whole process of a tailor-made order and its fulfillment paying close attention to the state of the art of the PLM system and its involvement in the facilitation of the activities necessary to manufacture refueling solutions in the field of methane transportation. The ultimate objective is to test the usefulness of the system in the company through evaluation of effective indicators, to improve the usage of PLM software in Cubogas and to evaluate the maturity degree of the company relatively to its processes from the point of view of a PLM application..