@inproceedings{Euzenat_Zimmermann_Freitas:WoMO2007, author = {J\'er\^ome Euzenat and Antoine Zimmermann and Fred Freitas}, title = {Alignment-based modules for encapsulating ontologies}, year = {2007}, pages = {32--45}, booktitle = {{S}econd {I}nternational {W}orkshop on {M}odular {O}ntologies ({WOMO 2007})}, month = jun, publisher = {{CEUR} {W}orkshop {P}roceedings}, editor = {Bernardo Cuenca-Grau and Vasant Honavar and Anne Schlicht and Frank Wolter}, language = {en}, url = {http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-315/paper4.pdf}, keywords = {ontology alignments, modular ontologies, ontology engineering}, abstract = {Ontology engineering on the web requires a well-defined ontology module system that allows sharing knowledge. This involves declaring modules that expose their content through an interface which hides the way concepts are modeled. We provide a straightforward syntax for such modules which is mainly based on ontology alignments. We show how to adapt a generic semantics of alignments so that it accounts for the hiding of non-exported elements, but honor the semantics of the encapsulated ontologies. The generality of this framework allows modules to be reused within different contexts built upon various logical formalisms.} }