Object-attribute-value (OAV)— any piece of knowledge can be represented as an object-attribute-value triple. The object can be a place, thing, person, or object. An attribute is a characteristic of the object; a value is the specific quality assumed by the attribute. For example, a car is an object that can be defined by its attributes, such as its make, model, color, year, and price. Finally, the value is the specific quality assumed by the attributes.
Definition