NDLI: An empirical study on the influence of pattern roles on change-proneness

Content Provider	Springer Nature Link
Author	Posnett, Daryl Bird, Christian Dévanbu, Prem
Copyright Year	2010
Abstract	Identifying change-prone sections of code can help managers plan and allocate maintenance effort. Design patterns have been used to study change-proneness and are widely believed to support certain kinds of changes, while inhibiting others. Recently, several studies have analyzed recorded changes to classes playing design pattern roles and find that the patterns “folklore” offers a reasonable explanation for the reality: certain pattern roles do seem to be less change-prone than others. We push this analysis on two fronts: first, we deploy W. Pree’s metapatterns, which group patterns purely by structure (rather than intent), and argue that metapatterns are a simpler model to explain recent findings by Di Penta et al. (2008). Second, we study the effect of the size of the classes playing the design pattern and metapattern roles. We find that size explains more of the variance in change-proneness than either design pattern or metapattern roles. We also find that both design pattern and metapattern roles were strong determinants of size. We conclude, therefore, that size appears to be a stronger determinant of change-proneness than either design pattern or metapattern roles, and observed differences in change-proneness between roles might be due to differences in the sizes of the classes playing those roles. The size of a class can be found much more quickly, easily and accurately than its pattern-roles. Thus, while identifying design pattern roles may be important for other reasons, as far as identifying change-prone classes, sheer size might be a better indicator.
Starting Page	396
Ending Page	423
Page Count	28
File Format	PDF
ISSN	13823256
Journal	Empirical Software Engineering
Volume Number	16
Issue Number	3
e-ISSN	15737616
Language	English
Publisher	Springer US
Publisher Date	2010-12-30
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Design patterns Empirical software engineering Programming Languages, Compilers, Interpreters Software Engineering/Programming and Operating Systems
Content Type	Text
Resource Type	Article
Subject	Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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