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Awareness of design smells - indicators of common design problems -
helps developers or software engineers understand mistakes made
while designing, what design principles were overlooked or
misapplied, and what principles need to be applied properly to
address those smells through refactoring. Developers and software
engineers may "know" principles and patterns, but are not aware of
the "smells" that exist in their design because of wrong or
mis-application of principles or patterns. These smells tend to
contribute heavily to technical debt - further time owed to fix
projects thought to be complete - and need to be addressed via
proper refactoring. Refactoring for Software Design Smells presents
25 structural design smells, their role in identifying design
issues, and potential refactoring solutions. Organized across
common areas of software design, each smell is presented with
diagrams and examples illustrating the poor design practices and
the problems that result, creating a catalog of nuggets of readily
usable information that developers or engineers can apply in their
projects. The authors distill their research and experience as
consultants and trainers, providing insights that have been used to
improve refactoring and reduce the time and costs of managing
software projects. Along the way they recount anecdotes from actual
projects on which the relevant smell helped address a design issue.
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