Oasis, 215, 233-234
object modeling, 82-86
see also data and object modeling
Object Oriented Software Construction (Meyer), 258
object role modeling (ORM), 200-201, 358
object-based systems, 83
object-oriented programming languages, 84
obligation and relationship, 112-120
occultism, 8
OCR (optical character recognition), 357
ODBC (open database connectivity), 173, 358
office productivity, 24
official and unofficial data, 172-173
Ogbuji, Uche, 265
OIL. See ontology inference layer
OilEd, 195, 202
O'Leary, Jim, "Tying it Together," 223
OMG (object management group), 358
On a New List of Categories (Peirce), 171
Ontolingua, 194
Ontologies: Principles, Methods and Applications (Uschold), 147
ontology, 7, 8-9, 45-57, 291-292, 358
resources, 317-320
Semantic Web, 273-275
see also terms: vocabulary, taxonomy, and ontology
ontology editors, 194-195
ontology inference layer (OIL), 267, 300, 358
ontology Web language (OWL), 220, 267, 269, 282, 300, 358
Ontoprise, 239
Ontosaurus, 194
OO (object oriented), 358
open-ended questions, 169
open systems, 358
Oracle, 215
orchestration, 358
orchestration and choreography in Web Services, 257
O'Reilly's XML site, 160
Organic Architecture, 96
organization and classification of knowledge, 8-9
ORM. See object role modeling
orthogonal taxonomies, 53, 358
overlap between industry and business, 48-51
overloading of common words (homonyms), 44-45
OWL. See ontology Web language