Example 1: The First Provenance Challenge. This example shows how a graph inspired from the workflow of the First Provenance Challenge is modeled by OPM: (example obtained from http://openprovenance.org/model/opmx#example):

In the image, the process of the workflow (PC1 Workflow) can be seen. It uses two different images and two different headers to produce the Artifact “Atlas X Graphic” (on the bottom of the figure), which is also derived from all the used artifacts. The process is controlled by the Agent “John Doe”.

Process PC1 could have also its own steps, but to simplify the example they are not included.

The xml serialization of the example can be seen here.

Modeling the europeana example with OPM.

Conclusion

OPM does not fit well for the purpose of the previous example. OPM has been designed to capture the evolution of the artifacts at an abstract level rather than their concrete meta-metadata. For example, in the context of the previous example (tracking of paintings), OPM would fit well if the painting went through a rstoring process: