Collaborative platforms are becoming a necessity for enterprises and organizations since they have become extended and have to work with other organizations in joint projects. Knowledge management is considered one of the critical successes of collaborative tools and platforms, especially collaborative ontologies. This paper aims to propose a new approach for developing a collaborative ontology that can be used to support a collaborative platform. Our approach begins with the idea of using a business process model of the collaborative situation, represented in BPMN notation, and to transform it into a collaborative ontology. 

Our collaborative process will be modeled collaboratively, and its transformation to an ontology will be done through a first transformation to Subject oriented BPM (S-BPM). We also proposed to validate our collaborative ontology using competency questions that will be formulated at the beginning by domain experts and the ontologist and verified at the end by the ontologist. Fiscal code generation of a newborn was adopted as a case study to prove the importance of this approach.

Compared to other approaches cited in the literature, our approach allows the construction of a collaborative ontology, that does not need enrichment perspectives, and that involves all collaborative partners during its construction process.