Abstract:
Ontologies are used to describe dynamic knowledge of domains (part of the real
world). If a change occurs to the domain, then the underlying ontology evolves over
time and the change should reflect in the ontology to give true impression of the real
world. Most of the existing ontology evolution management systems keep record of
the changes atemporally and inefficiently. Keeping history of changes to ontologies is
important and required feature in some application domains, because tracing back the
recorded changes temporally and finding out a specific change play an important and
crucial role in the making right operational decisions.
To achieve the above mentioned objectives we propose a History Management
System for Ontology Evolution (HMSOE). This system uses a modified version of
the data model of Temporal Object System (TOS) because it records all types of
changes in a single, elegant and temporal fashion. Later, the recorded changes are
traceable temporally and a specific change can also be identifiable. We have modified
the data model of TOS to add it more evolutionary features.
