NDLI: Code Smells Revisited: A Variability Perspective

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Code Smells Revisited: A Variability Perspective

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Code Smells Revisited: A Variability Perspective

Content Provider	ACM Digital Library
Author	Schulze, Sandro Fenske, Wolfram
Abstract	Highly-configurable software systems (also called software product lines) gain momentum in both, academia and industry. For instance, the Linux kernel comes with over 12 000 configuration options and thus, can be customized to run on nearly every kind of system. To a large degree, this configurability is achieved through variable code structures, for instance, using conditional compilation. Such source code variability adds a new dimension of complexity, thus giving rise to new possibilities for design flaws. Code smells are an established concept to describe design flaws or decay in source code. However, existing smells have no notion of variability and thus do not support flaws regarding variable code structures. In this paper, we propose an initial catalog of four variability-aware code smells. We discuss the appearance and negative effects of these smells and present code examples from real-world systems. To evaluate our catalog, we have conducted a survey amongst 15 researchers from the field of software product lines. The results confirm that our proposed smells (a) have been observed in existing product lines and (b) are considered to be problematic for common software development activities, such as program comprehension, maintenance, and evolution.
Starting Page	3
Ending Page	10
Page Count	8
File Format	PDF
ISBN	9781450332736
DOI	10.1145/2701319.2701321
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2015-01-21
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Code smells Design defects Variability Software product lines
Content Type	Text
Resource Type	Article

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