Lewis Hart Patrick Emery Robert M. Colomb Kerry Raymond Dan Chang Yiming Ye Elisa F. Kendall Mark Dutra Usage Scenarios and Goals for Ontology Definition Metamodel. 596-607 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3306&spage=596 2004 conf/wise/2004 WISE db/conf/wise/wise2004.html#HartECRCYKD04