Currently published statistics focused on the area of software projects are very disturbing. It is alarming that, according to research company Standish Group only 32% of IT projects end successfully. The percentage of cancelled projects, 24%, is even more disturbing. The applied methodology should contribute to the increase success of the software engineering projects. Statistics show that the methodology applied in the work sphere, is currently used by more than 50% of firms. This work shows the development of specific software in a small IT company, which currently is not supported by any methodology of IS / ICT. The primary objective of this work is the evaluation of the methodology best suited to the needs of business presented. The first chapter of the theoretical part deals with the issues of software engineering and is focused mainly on the area of IT projects success rates and related critical factors of software engineering. The second chapter is then devoted to the history of software engineering and describes the important milestones leading to the development of the most well-known life cycle models and methodologies. The main part of the theoretical block is devoted to methodologies of IS / ICT. This passage is particularly concentrating on the meaning of methodologies in the management of development projects. It also focuses on comparing agile and rigorous methodologies and deals with the assessment of appropriate methodologies for the development of IS / ICT in small businesses. The first part of the practical unit focuses on the introduction of the presented company. The following chapters are devoted to analyzing the current state of software engineering of the client, leading to the detection of the major problems of current development. The analysis is followed by chapter, which is devoted to the presentation of five agile methodologies which were selected on the basis of criteria based on client's specific requirements and needs. The final part is devoted to the evaluation of methodologies based on meeting the given criteria and according to the level of support solutions to the problems analyzed. Based on the resulting findings the client is recommended specific methodology and the appropriate procedure outlined in the implementation of the chosen methodology.