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The use of Feature Models (FMs) to define the valid combinations of features in Software Product Lines (SPL) is becoming commonplace.
To enhance the scalability of FMs, support for composing FMs
describing different SPL aspects is needed.
Some composition operators, with interesting property preservation
capabilities, have already been defined but a comprehensive and efficient implementation is still to be proposed.
In this paper, we systematically compare strengths and weaknesses of different
The study provides some evidence that using generic model
composition frameworks are not helping much in the
realization, whereas a specific solution is finally necessary and clearly stands out by its qualities.