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Previous issue date: 2014 / FACEPE, INES / Atualmente, Programao Orientada a Objetos (POO) um dos paradigmas mais utilizados.
Complementarmente, a manutenibilidade de software considerada um atributo de software
que desempenha um papel importante com relao ao nvel de qualidade. Neste contexto, a
Manutenibilidade de Software Orientado a Objetos (MSOO) foi estudada atravs de anos e vrios
pesquisadores propuseram um elevado nmero de mtricas para a medir. Como consequncia do
nmero e da diversidade de mtricas existentes, alm da no padronizao nas definies e nomenclatura,
a tomada de deciso sobre quais mtricas podem ser adotadas para realizar estudos em MSOO
difcil. Desta forma, um mapeamento sistemtico foi realizado a fim de encontrar quais mtricas
so usadas como indicadores de MSOO. Houve uma seleo inicial de 5175 estudos primrios e
138 artigos foram selecionados, resultando em 568 mtricas encontradas. Analisando as 568
mtricas, foram encontradas inconsistncias na nomenclatura destas mtricas, pois havia mtricas com
nomes iguais mas significados diferentes (8 casos envolvendo 17 mtricas) e tambm mtricas com
nomes diferentes e significados semelhantes (32 casos envolvendo 214 mtricas). Alm disto, uma
categorizao destas mtricas foi proposta, sendo identificadas 7 categorias e 17 subcategorias. Estas
categorias representam os cenrios de adoo de mtricas de MSOO. Adicionalmente, um portal web
de mtricas foi desenvolvido para fornecer informaes sobre as mtricas para outros pesquisadores
e tambm gerar catlogos de mtricas de acordo com o contexto da aplicao das mesmas. Este portal
tambm pode ser alimentado sistematicamente por outros pesquisadores que lidam com mtricas
de MSOO, fazendo com que os resultados deste trabalho possam representar os primeiros passos
para padronizao e compreenso destas mtricas. Por ltimo, um quasi-experimento foi realizado
para checar o grau de cobertura do catlogo proposto pela abordagem aqui apresentada quando o
mesmo comparado com catlogos sugeridos por especialistas. 90% de cobertura foi obtido e este
resultado foi confirmado com 99% de grau de confiana usando o Teste de Wilcoxon. De forma
complementar, houve uma pesquisa de opinio para checar se os especialistas acharam catlogo
gerado usando a nossa abordagem semelhante ou melhor do que o sugerido por eles. Sendo
assim, os resultados da anlise da cobertura dos catlogos pode servir como indcios da utilidade da
abordagem proposta para a escolha de mtricas na avaliao de MSOO. / Currently, Object-Oriented Programming (OOP) is one of the most used paradigms.
Complementarily, the software maintainability is considered a software attribute that plays an
important role in quality level. In this context, the Object-Oriented Software Maintainability
(OOSM) has been studied through years, and many researchers have proposed a large number
of metrics to measure it. As a consequence of the number and diversity of metrics, beyond the
no standardization in metrics definition and naming, the decision-making process about which
metrics can be adopted in experiments on OOSM, or even their using in software companies is
a difficult task. Therefore, a systematic mapping study was conducted in order to find which
metrics are used as indicators in OOSM assessments. There was an initial selection of 5175
primary studies and 138 were selected, resulting in 568 metrics found. Analyzing the 568
metrics, inconsistencies in metrics’ naming were found because there were metrics with the same
names but different meanings (8 cases involving 17 metrics) and also, there were metrics with
different names, however with similar meanings (32 cases involving 214 metrics). Moreover,
a metrics’ categorization has been proposed to facilitate decision-making process about which
ones have to be adopted, and 7 categories and 17 subcategories were identified. These categories
represent the evaluation scenarios where OOSM metrics should be used. Additionally, a metrics’
web portal was developed to provide information about the metrics collected in this research,
and to generate metrics’ catalogs according to the context of their adoption. This portal can
also be systematically fed by other researchers that work with OOSM metrics, making the
results of this work the first steps towards metrics’ standardization, and the improvement of the
metrics’ validation. Finally, a quasi-experiment was conducted to check the coverage index of the
catalogs generated using our approach over the catalogs suggested by experts. 90% of coverage
was obtained and this result was confirmed with 99% of confidential level using the Wilcoxon
Test. Complementarily, a survey was conducted to check the experts’ opinion about the catalog
generated by the portal when they were compared by the catalogs suggested by the experts. Thus,
the coverage evaluation can be the first evidences of the usefulness of the proposed approach for
metrics’ choice in OOSM evaluation.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufpe.br:123456789/12152 |
| Date | 31 January 2014 |
| Creators | SARAIVA, Juliana de Albuquerque Gonçalves |
| Contributors | SOARES, Sérgio Castelo Branco, L. FILHO, Fernando J. C. de |
| Publisher | Universidade Federal de Pernambuco |
| Source Sets | IBICT Brazilian ETDs |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Source | reponame:Repositório Institucional da UFPE, instname:Universidade Federal de Pernambuco, instacron:UFPE |
| Rights | Attribution-NonCommercial-NoDerivs 3.0 Brazil, http://creativecommons.org/licenses/by-nc-nd/3.0/br/, info:eu-repo/semantics/openAccess |
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