The Effect of Code Smells on the Relationship Between Design Patterns and Defects

The relationship between design patterns and defects was investigated in the literature, but with mixed results. While the majority of studies found the presence of patterns to be positively correlated with defects, other works reported the opposite conclusions. This may suggest that contextual fact...

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Autores principales:	Tarek Alkhaeir, Bartosz Walter
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Code smells design patterns defect proneness Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/4dbc4c69d60041d0a3a3f0c84b3689a3
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spelling	oai:doaj.org-article:4dbc4c69d60041d0a3a3f0c84b3689a32021-11-23T00:00:56ZThe Effect of Code Smells on the Relationship Between Design Patterns and Defects2169-353610.1109/ACCESS.2020.3047870https://doaj.org/article/4dbc4c69d60041d0a3a3f0c84b3689a32021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9309303/https://doaj.org/toc/2169-3536The relationship between design patterns and defects was investigated in the literature, but with mixed results. While the majority of studies found the presence of patterns to be positively correlated with defects, other works reported the opposite conclusions. This may suggest that contextual factors affect this relationship. In this study we analyze the role of code smells as a confounding variable in the relationship between design patterns and defects in Java classes. To investigate this, we applied statistical tests to capture the difference in the impact on defects between pattern classes with/without code smells in 10 Java systems from the PROMISE dataset, with respect to 13 design patterns and 10 code smells. The presence of code smells in patterns appears to be a valid factor affecting defect-proneness. Pattern classes with smells attract more defects than non-smelly pattern classes, and in most systems smelly design patterns are positively correlated with the presence of defects, while non-smelly patterns tend to have no impact, or a slightly negative impact on the presence of defects. As a result, the presence of code smells in design pattern classes appears to be a contextual factor affecting the defect-proneness of the subject code.Tarek AlkhaeirBartosz WalterIEEEarticleCode smellsdesign patternsdefect pronenessElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 3360-3373 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Code smells design patterns defect proneness Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Code smells design patterns defect proneness Electrical engineering. Electronics. Nuclear engineering TK1-9971 Tarek Alkhaeir Bartosz Walter The Effect of Code Smells on the Relationship Between Design Patterns and Defects
description	The relationship between design patterns and defects was investigated in the literature, but with mixed results. While the majority of studies found the presence of patterns to be positively correlated with defects, other works reported the opposite conclusions. This may suggest that contextual factors affect this relationship. In this study we analyze the role of code smells as a confounding variable in the relationship between design patterns and defects in Java classes. To investigate this, we applied statistical tests to capture the difference in the impact on defects between pattern classes with/without code smells in 10 Java systems from the PROMISE dataset, with respect to 13 design patterns and 10 code smells. The presence of code smells in patterns appears to be a valid factor affecting defect-proneness. Pattern classes with smells attract more defects than non-smelly pattern classes, and in most systems smelly design patterns are positively correlated with the presence of defects, while non-smelly patterns tend to have no impact, or a slightly negative impact on the presence of defects. As a result, the presence of code smells in design pattern classes appears to be a contextual factor affecting the defect-proneness of the subject code.
format	article
author	Tarek Alkhaeir Bartosz Walter
author_facet	Tarek Alkhaeir Bartosz Walter
author_sort	Tarek Alkhaeir
title	The Effect of Code Smells on the Relationship Between Design Patterns and Defects
title_short	The Effect of Code Smells on the Relationship Between Design Patterns and Defects
title_full	The Effect of Code Smells on the Relationship Between Design Patterns and Defects
title_fullStr	The Effect of Code Smells on the Relationship Between Design Patterns and Defects
title_full_unstemmed	The Effect of Code Smells on the Relationship Between Design Patterns and Defects
title_sort	effect of code smells on the relationship between design patterns and defects
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/4dbc4c69d60041d0a3a3f0c84b3689a3
work_keys_str_mv	AT tarekalkhaeir theeffectofcodesmellsontherelationshipbetweendesignpatternsanddefects AT bartoszwalter theeffectofcodesmellsontherelationshipbetweendesignpatternsanddefects AT tarekalkhaeir effectofcodesmellsontherelationshipbetweendesignpatternsanddefects AT bartoszwalter effectofcodesmellsontherelationshipbetweendesignpatternsanddefects
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The Effect of Code Smells on the Relationship Between Design Patterns and Defects

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