The development of the OSS is assumed to start with in Cathedral phase where cathedral building development style is followed. In this small group of individual developer initiate the development in the closed environment with no outside audience or participant. This phase consist the project author, core developer, and project manager. The cathedral phase
follows UNIX kind of philosophy for its development. Once the software developer gained confidence in the development they publish their work on internet. This change phase is called as transition phase. Transition phase acts as link between cathedral and bazaar phases. Transition phase is initiated only when the design is stable and modular, original author lose interest in the Individual development process and a prototype of software are ready for use. In Bazaar phase the bazaar development style is followed, where the development actually proceed in the distributed environment. The interested people join the development process and perform development, maintenance, bug reporting, bug fixing etc., tasks. The
development of the OSS is done in collaborative manner. The author considered two case studies Mine and Arla to find check the applicability of the proposed life cycle and to check why Wine is so successful and very much alive with the continuous development process as compare to Arla. The various phases of the development model proposed by are shown in Figure 2.