Extracting integration rules to handle semantic heterogeneity is one of the main challenges of achieving seamless connectivity between distributed systems. Semantics of Business Vocabulary and Rules (SBVR)’s machine and human readability and platform independence make it potentially suitable and interesting to study, as a central semantic hub of different systems. Semantic heterogeneity can be identified by comparing and analyzing vocabularies, fact models and business rules in the hub. Integration rules can then be extracted based on the semantic heterogeneity analysis. This article investigates and evaluates the usage of SBVR in heterogeneous systems integration. It provides a real- life case study and experience report on extracting integration rules based on an analysis of two Norwegian public sector’s heterogeneous IT-systems modeled in SBVR.