Ontology Mapping between Psl and Xml- Based Standards for Project Scheduling

Many ontology standards, such as STEP, ifcXML, aecXML and PSL, have been proposed for the A/E/C industries. Different ontologies exist and they have many advantages for information exchange within specific domain applications. However, the existence of different ontologies may cause many interoperability issues. For example, while PSL, ifcXML and aecXML all have provisions related to project management and scheduling information, an aecXML-compatible or ifcXML-compatible application cannot directly exchange information with a PSL-compatible application. In this paper, we address this information exchange problem by building translators among PSL, ifcXML and aecXML in the project scheduling domain. We examine the ontology mapping among PSL, ifcXML and aecXML, and compare their expressive power. Using the parsers and translators developed, we successfully demonstrate the information exchange among PSL, ifcXML and aecXML for various projects.