- [Instructor] In the second phase, an ontology is created.
It is a model of how the terms in your knowledge area
are related to each other.
Again, there may be existing ontologies that you can extend.
One example of an ontology
is the friend of a friend ontology.
It can be used for describing persons,
organizations, and their connections.
It contains of 14 classes,
33 relations and 25 attributes.
Here, we see the tool PoolParty and the ontology.
We see that a agent can be a document,
a person, or a group, that this person could have
an online chat account or a gaming account.
Furthermore, the relations between these objects
can be described.
For example, that a person has a homepage image,
is interested in a topic, and a member of a certain group.
The ontology also contains the attributes
that a object can have.
For example, a person can have a age, agenda,
a last name and a chat ID.
An example of an ontology for business use
is the financial business ontology.
The financial business ontology describes classes
that appear in the context of, for example,
a bank, like account and account could have a concept
like investment or deposit account.
The financial business ontology describes, in addition,
the relationships between these objects, for example,
a customer can have an account.
Furthermore, the attributes are described that appear
in the context of a bank.