Knowledge Representation Technology
Hard coded concepts:Value and Class
The unit is a pair.
The Datum Universe can be seen as an abstraction of the relational table and the entity attribute value or RDF models as shown in the following illustration. However, it is best viewed as a graph of datums.
Hard coded concepts: Table, Column, and Field (the value in a given row and column).
The unit is a row which is a list of fields.
Advantages: Provide natural visualization of large sets of similar data.
Hard coded concepts: Entity, Attribute, and Value.
The unit is a triple.