In many agri-food chains, the food quality is often managed using the know-how based on the experience. The global quality enhancement may come from the sharing of the collective know-how. Capex ontology has been designed as a core ontology to represent potential causal relationships between situations of interest which permit to link a quality/default to an action to maintain/solve it. Current version is expressed using the Conceptual Graph ontological formalism. It will be expressed in OWL/RDF in the very next future. Current applications concern food processing but this core ontology may be used in any production sector.

Core ontology of CoGui Capex, decision support system tool designed to recommend an action to maintain/correct a quality/default in a food process.