Change propagation due to uncertainty change

Abstract

Uncertainty is ubiquitous in software engineering; however, it has been typically handled in adhoc and informal ways within software models. Automated change propagation is recognized as a key tool for managing the accidental complexity that comes with multiple interrelated models. In this paper, we address change propagation in the context of model uncertainty and consider the case where changes in the level of uncertainty in a model can be propagated to related models. We define such uncertainty change propagation using our earlier formalization and develop automated propagation algorithms using an SMT solver. A preliminary evaluation shows that the approach is feasible. © 2013 Springer-Verlag.