Nowadays open-source software communities are thriving. Successful open-source projects
are competitive and the amount of source code that is freely available offers great reuse …

Abstract Design patterns are recommended solutions for typical software design problems,
with an extensively studied and documented impact on various quality factors. Flaws in …

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 …

This study aims at development of generating metrics based code smells prediction to
improve the software quality assurance by working at preventive maintenance level. In order …

Since Gamma et al. published their design patterns, patterns are very popular in the area of
software engineering. They provide best practice to handle recurring problems during the …

Abstract Design contexts are factors that shape a design, and whilst they are recognised by
developers, they are typically tacit. Unlike software requirements, software engineering …

During software evolution, inexperienced developers may introduce design anti-patterns
when they modify their software systems to fix bugs or to add new functionalities based on …

Refactoring operations are behavior-preserving changes aimed at improving source code
quality. While refactoring is largely considered a good practice, refactoring proposals in pull …

Software reuse is considered the silver bullet of software engineering. It has been largely
demonstrated that the proper implementation of design and reuse principles can …

This work presents a descriptive and analytic study of classes playing zero, one, or two roles
in six different design patterns (and combinations thereof). First, we answer three research …