Figure 2.
PROV-DM Core Structures are 1) entity - a physical, digital, conceptual, or other kind of thing with some fixed aspects, and can be real or imaginary., 2) activity - something that occurs over a period of time and acts upon or with entities; it may include consuming, processing, transforming, modifying, relocating, using, or generating entities., 3) agent -something that bears some form of responsibility for an activity taking place, for the existence of an entity, or for another agent's activity, and the relationships a) wasDerivedBy, b) used, c) wasGeneratedBy, d) wasInformedBy, e) wasAssociatedWith, f) actedOnBehalfOf, g) wasAttributedTo. (figure adopted from http://www.w3.org/TR/prov-dm/ ).