Software theory change for resilient near-complete specifications

Software evolution and its laws are essential for antifragile system design and development. In this paper we model early-stage perfective and corrective changes to software system architecture in terms of logical operations of expansion and safe contraction on a theory. As a result, we formulate an inference-based notion of property specification resilience for computational systems, intended as resistance to change. The individuated resilient core of a software system is used to characterize adaptability properties