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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

CodeTrack: uma ferramenta para an?lise cont?nua de conflitos indiretos de software

Oliveira Neto, Jo?o Victor de 31 August 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-02-15T13:38:34Z No. of bitstreams: 1 JoaoVictorDeOliveiraNeto_DISSERT.pdf: 2906470 bytes, checksum: 5e5f0824ff4be1201d9af45aac2ed119 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-02-20T21:02:12Z (GMT) No. of bitstreams: 1 JoaoVictorDeOliveiraNeto_DISSERT.pdf: 2906470 bytes, checksum: 5e5f0824ff4be1201d9af45aac2ed119 (MD5) / Made available in DSpace on 2018-02-20T21:02:12Z (GMT). No. of bitstreams: 1 JoaoVictorDeOliveiraNeto_DISSERT.pdf: 2906470 bytes, checksum: 5e5f0824ff4be1201d9af45aac2ed119 (MD5) Previous issue date: 2017-08-31 / A necessidade de evolu??o nos softwares tornou-se cada vez mais frequente e a engenharia de software precisou se adaptar para entregar produtos de qualidade em prazos cada vez menores. Para que o software continue sendo ?til ao longo do tempo, para o prop?sito ao qual foi desenvolvido, ? necess?rio que sejam realizadas mudan?as ou inclu?das novas funcionalidades para que este acompanhe as mudan?as no contexto do neg?cio. Com essas mudan?as, ? inevit?vel que o software passe a aumentar de tamanho e, consequentemente, em complexidade. Essa expans?o do software cria relacionamentos de depend?ncia entre componentes do c?digo-fonte e essas depend?ncias se propagam em uma cadeia de depend?ncias ? medida que a aplica??o cresce. Reescrever o mesmo trecho de c?digo ? uma pr?tica n?o recomendada no desenvolvimento de software, pois implica em replicar c?digo de forma distribu?da e desordenada. Ao fazer o reuso, o mesmo trecho j? escrito ? referenciado em diferentes funcionalidades do sistema atrav?s da cadeia de depend?ncia e chamadas de m?todos, fazendo com que diferentes partes do c?digo que estejam associadas a diferentes funcionalidades passem a depender de um mesmo componente. Altera??es de trechos de c?digo que possuem rela??o direta ou indireta com diferentes casos de uso podem levar a falhas imprevistas da aplica??o, pois dependendo do n?mero de artefatos envolvidos e da extens?o da cadeia de depend?ncias relacionada ao c?digo alterado, uma mudan?a pode impactar um outro caso de uso que aparentemente n?o tem rela??o com o trecho de c?digo modificado. Prever impactos decorrentes de altera??es em um artefato ? uma tarefa que exige tempo para an?lise, profundo conhecimento do c?digo-fonte e esfor?o de teste. Este trabalho apresenta uma abordagem para automatizar a identifica??o de poss?veis conflitos indiretos atrav?s de uma ferramenta, capaz de determinar quais casos de uso possuem maior probabilidade de serem impactados por mudan?as no c?digo-fonte, podendo assim direcionar os esfor?os de testes de forma mais eficaz. Foi elaborado um estudo para avaliar um projeto real de dimens?o extensa que n?o possui uma su?te de testes automatizados e a ferramenta desenvolvida mostrou-se eficiente para detectar conflitos indiretos em diferentes cen?rios e tamb?m provou, atrav?s de um experimento emp?rico, que a maior parte das falhas decorrentes de conflitos indiretos teriam sido evitadas caso a ferramenta tivesse sido utilizada ainda na fase de desenvolvimento. / The necessity of software evolution for those which solve daily problems became even more frequent and the software engineering had to be adapted in order to be able to delivery products with good quality in tight dead lines. In order to the software continues being useful during its life cycle, to the main purpose whose was developed, its necessary to apply changes or include new features due to changes which happens in the business. Rewrite the same block of code is not a recommended approach on software development, because it spreads code in a distributed and disordered way. Applying the code reuse, the same block of code already wrote is referenced by different use cases through the dependency chain and method calls, where different parts of the code, which are being relate to differents funcionalitys, going to depend to the same component. Changes applyed to a block of code which has direct or indirect relation with differents use cases may lead to umpredictable fails, depending on the number of different artifacts related and the extension of dependency chain related to the artifact which was modified, this change may cause a impact on another use case which, by a first look, does not have any relation which the modified block of code. Predict impacts from in a specific artifact is a task which demands time to analysis, deep knowledge of the source-code and test effort. This paper presents an approach to automatize the identification of possible indirect conflicts using the developed tool, whose can determinate which use cases are more defect prone by source-code changes, providing a more effective direction to the test?s efforts. A Study Case was elaborated, assessing a real project of extensive dimension whose doesn?t have a automatized test case suite, and the developed tool was able to identify the indirect conflicts on differents cenarios and besides, the tool was able to proof in a empiric experiment which the major failures, caused by indirect conflicts could be avoided if the tool were be used during the development fase.

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