This paper discusses an ontology developed to represent the CMMI-ACQ domain knowledge. CMMI introduces a collection of best practices that helps organizations improve their processes and CMMI-ACQ as one of its constellations is to provide organizations with a resource of effective and proven practices to support acquisition process improvement. This ontology has been developed based on SUMO upper ontology. Through the paper, CMMI and CMMI-ACQ will be illustrated. Also the ontology, its development methodology, and its potential application will be described.
