Chapter 20: Modeling Linage
What is Linage and Provence?
The Who Did What to an Entity Model
Entity
An entity is a physical, digital, conceptual, or other kind of thing with some fixed aspects; entities may be real or imaginary.
Activity
An activity is something that occurs over a period of time and acts upon or with entities.
Activities may include consuming, processing, transforming, modifying, relocating, using, or generating entities. [Detailed specification] Just as entities cover a broad range of notions, activities can cover a broad range of notions: information processing activities may for example move, copy, or duplicate digital entities; physical activities can include driving a car between two locations or printing a book.
Agent
An agent is something that bears some form of responsibility for an activity taking place, for the existence of an entity, or for another agent's activity.
The DM-Prov Reference Model
