  Code smells as symptoms of poor design and implementation choices. Many times
they are the result of so called technical debt. Our study showed that the
interest in code smells research is increasing. However, most of the
publications are appearing in conference proceedings. Most of the research is
done in G7 and other highly developed countries. Four main research themes were
identified namely code smell detection, bad smell based refactoring, software
development and anti patterns. The results show that code smells can also have
a positive connotation, we can develop software which smells good and attracts
various customers and good smelling code could also serve as a pattern for
future software development.
