FACTUM studio: A tool for the axiomatic specification and verification of architectural design patterns

Abstract

Architectural Design Patterns (ADPs) restrict the design of an architecture with the aim to guarantee certain properties. Verifying ADPs requires to show that the imposed constraints indeed lead to the claimed guarantees and it is best done using interactive theorem proving (ITP). ITP, however, requires knowledge which is usually not available in the architecture community, which is why the technology is rarely used for the verification of patterns. To address this problem, we are working on a tool which supports the interactive verification of ADPs at a level of abstraction familiar to an architect. In the following paper, we introduce the tool and demonstrate it by means of a running example: we model a version of the Publisher-Subscriber pattern with a corresponding guarantee and verify it in a generated Isabelle/HOL theory.