User-level synthesis

In this paper, we sketch how treating product lines as systems of possibly heterogeneous constraints allows one to elegantly and consistently manage product lines in terms of a product line of product lines. In fact, as will also be illustrated along our example scenarios, this leads to a framework for a consistent division of labour in an "easy for the many difficult for the few" fashion which supports correctness by construction. Central for this approach are our powerful model-based synthesis and code generation technologies, which turn systems of constraints into executable models or target code.