Ontologies
Ontologies: formal description of concepts and their relationships
Examples:
Definition of "plane ticket" and "non-refundable plane ticket"
A "non-refundable plane ticket" is a kind of "plane ticket"
Communication of concepts
Customer
Travel Agent Service
uses
Credit Card WS 1
Airline WS 1
Airline WS 2
Airline WS 3
Hotel WS 1
Hotel WS 2
Hotel WS 3
Ontologies
Hugo Haas, W3C
9 of 24