A Call for Removing Variability

by Xhevahire Ternäva
DiverSE Coffee
Rennes, France


Software variability is largely accepted and explored in software engineering and seems to have become a norm and a must, if only in the context of product lines. Yet, the removal of superfluous or unneeded software artefacts and functionalities is an inevitable trend. It is frequently investigated in relation to software bloat. This paper is essentially a call to the community on software variability to devise methods and tools that will facilitate the removal of unneeded variability from software systems. The advantages are expected to be numerous in terms of functional and non-functional properties, such as maintainability (lower complexity), security (smaller attack surface), reliability, and performance (smaller binaries).