Research into the methods of software product developing and maintaining

Currently the development of information and Open Source technologies for the implementation of critical business functions in fields of national economy, including space industry becomes relevant. However, as experience shows there is no uniform method for the process of developing and operating the software product using Open Source technology. The aim of the article is to study classical and modern models and technologies of software analysis and design. It will help choose the optimal model for the development of the method for creating a prototype information system using Open Source technology, and also to define the design environment and the tasks of implementing the prototype of the information system. The article considers a summary table which allows to choose efficient model for developing the method of building the information system, taking into account the specifics of the free software products.