Supporting Product Line Adoption by Combining Syntactic and
Textual Feature Extraction
András Kicsi, László Vidács, Viktor Csuvik, Ferenc Horváth,
Árpád Beszédes, Ferenc Kocsis
Software product line (SPL) architecture facilitates
systematic reuse to serve specific feature requests of new
customers. Our work deals with the adoption of SPL architecture in
an existing legacy system. In this case, the extractive approach
of SPL adoption turned out to be the most viable method, where the
system is redesigned keeping variants within the same code base.
The analysis of the feature structure is a crucial point in this
process as it involves both domain experts working at a higher
level of abstraction and developers working directly on the
program code. In this work, we propose an automatic method to
extract feature-to-program connections starting from a very high
level set of features provided by domain experts and existing
program code. The extraction is performed by combining and further
processing call graph information on the code with textual
similarity between code and high level features. The context of
our work is an industrial SPL adoption project of a large scale
logistical information system written in an 4G language, Magic. We
demonstrate the benefits of the combined method and its use by
different stakeholders in this project.
Keywords: Product lines,
SPL, Feature extraction, Variability mining, Magic, 4GL,
Information retrieval, Call graphs.
Back