Kulesza, UiraPontes, Erick Sharlls Ramos de2018-03-192018-03-192017-08-25PONTES, Erick Sharlls Ramos de. Um método para extração e evolução de linhas de produto de software a partir de sistemas Web existentes. 2017. 87f. Dissertação (Mestrado Profissional em Engenharia de Software) - Instituto Metrópole Digital, Universidade Federal do Rio Grande do Norte, Natal, 2017.https://repositorio.ufrn.br/jspui/handle/123456789/24904A software product line (SPL) represents a family of related systems that share commonalities and variabilities to address the needs of a specific market or mission. The adoption of SPL has been applied in several areas in the software industry due to the benefits achieved, such as reduction of development costs, quality improvement and reduction of time to market. However, distinct scenarios can be found when developing a SPL, which lead to 3 approaches for adopting a SPL: (1) proactive approach: there are no previous software implementation and a SPL is developed from scratch; (2) reactive approach: there is a SPL available which is evolved to address new features and products; (3) extractive approach: SPL is developed from the assets of a system or a set of related systems that already exists. In the scenarios of the extractive and reactive approaches, this dissertation proposes a method of extraction and evolution of SPLs from existing systems implemented in the Java language. The method was extracted from an empirical study of an LPS for the domain of systems that manage physical spaces from different Federal University of Rio Grande do Norte (UFRN) departments and defined three activities that present a set of guidelines for refactoring and modularizing features in systems implemented in Java: (i) Model SPL features, (ii) Design and Implement LPS by refactoring an existing system, and (iii) Perform tests for each of the existing products. The method is evaluated through its application during SPL evolutions to address new requirements demanded by the customers. As a result of the study, we found an increase in the number of lines of code of the products of the products, however, the SPL core had lower lines of code than any product before and after the LPS extraction. Thus, the SPL assets have become better modularized in terms of features, which may facilitate the evolution of core and variant implementations of each application.Acesso AbertoLinhas de produto de softwareEvolução de softwareReengenharia de sistemas existentes para LPSmasterThesisCNPQ::ENGENHARIAS: ENGENHARIA DE SOFTWARE