Banca de QUALIFICAÇÃO: JOAO HELIS JUNIOR DE AZEVEDO BERNARDO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : JOAO HELIS JUNIOR DE AZEVEDO BERNARDO
DATA : 31/05/2017
HORA: 09:00
LOCAL: Auditório B321 - CIVT/IMD
TÍTULO:

The Impact of Adopting Continuous Integration on the Delivery Time of Pull Requests: An Empirical Study


PALAVRAS-CHAVES:

continuous integration; pull-based development; pull request; delivery time; delivery delay.


PÁGINAS: 59
RESUMO:

Continuous Integration (CI) is a software development practice that lead developers to integrate their work more frequently. Software projects have broadly adopted CI to ship new releases more frequently and to improve code integration. The adoption of CI is usually motivated by the allure of delivering new software content more quickly. However, there is little empirical evidence to support such a claim. Over the last years, many available software projects from social coding environments such as GitHub have adopted the CI practice using facilities that are integrated in these environments (e.g., Travis-CI). Through the analysis of 167,037 pull requests (PRs) of 90 GitHub projects that are implemented in 5 different programming languages, we empirically investigate the impact of adopting CI on the time-to-delivery of merged PRs. Interestingly, we find that PRs tend to wait longer to be delivered after the adoption of CI in the majority (53%) of the studied projects. We also observe that the large increase of PR submissions after CI is a key reason as to why projects deliver PRs more slowly after adopting CI. To investigate the factors that are related to the time-to-delivery of merged PRs, we train regression models that obtain sound median R-squares of 0.72-0.74. Finally, a deeper analysis of our models indicates that, before and after the adoption of CI, the intensity of code contributions to a release may increase the delivery time due to a higher integration-load of the development team.


MEMBROS DA BANCA:
Presidente - 1644456 - UIRA KULESZA
Interno - 1671962 - EDUARDO HENRIQUE DA SILVA ARANHA
Interno - 1709820 - ROBERTA DE SOUZA COELHO
Externo à Instituição - DANIEL ALENCAR DA COSTA - Queensu
Notícia cadastrada em: 23/05/2017 08:28
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