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The Trident workbench is only one way to create and present scientific workflow. To make sure that other scientific workflow systems are able to utilize other science or engineering modeling, a standard has been proposed.
You can find the document I am working from at: http://eprints.ecs.soton.ac.uk/18332/1/opm.pdf .
The high level requirements may look like:
The Open Provenance Model (OPM) is a model of provenance that is designed to meet the following requirements: To allow provenance information to be exchanged between systems, by means of a compatibility layer based on a shared provenance model. To allow developers to build and share tools that operate on such provenance model. To de ne provenance in a precise, technology-agnostic manner. To support a digital representation of provenance for any \thing", whether produced by computer systems or not. To allow multiple levels of description to co-exist. To determine a core set of rules that identify the valid inferences that can be made on provenance representation.
The Open Provenance Model (OPM) is a model of provenance that is designed to meet the following requirements:
The idea is to not lock into any specific protocol, technology, etc. Rather, from my reading, it is to assist in solving problems like the inability to review older data such as the data from the Mariner Planetary Missions from the 1960s and onward. Other issues that could be improved such as the discussions around the reliability of the climate warming data.
Why is this important?
Standards are always good in my opinion. They make things easier for all of us in the long run.