This paper outlines an open framework to share information concepts used in domain knowledge modeling and analysis performed before CBS development. The above framework can support the integration of ECBS information models at the domain level by way of the following characteristics. First, a minimalist ontology is introduced to capture relevant categories of information concepts (i.e. domain abstractions) used in different information modeling approaches. Second, a formal but analyst-oriented representation is adopted to model knowledge about the distinct categories of information concepts captured in CBS domains. Third, category-dependent rules for the construction of information concept hierarchies are defined as the basis of automatic deductive services. The above characteristics are compared with the corresponding ones of popular data, process and object modeling approaches.