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## Provenance
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From PROV, listed below: "Provenance is information about entities, activities, and people involved in producing a piece of data or thing, which can be used to form assessments about its quality, reliability or trustworthiness." Provenance traces the history of an artifact, its processes and inputs, their processes and inputs, etc.
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* Provenance overlaps almost completely with the problems that Value Flows is working on.
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* Provenance models are a lot like Value Flows models.
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* Provenance vocabularies are a lot like Value Flows vocabs.
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* We might be sisters!
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## Provenance vocabularies
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* [Open Provenance](http://openprovenance.org/)
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* [PROV](http://www.w3.org/TR/prov-overview/)
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* [Comparison of different provenance vocabs](http://www.w3.org/2005/Incubator/prov/wiki/Provenance_Vocabulary_Mappings)
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## Similarities to Value Flows
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The P's are Processes, the Ag's are Agents, The A's are Artifacts (Resources).
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![Provenance graph](http://www.b-me.de/Wordpress/wp-content/uploads/2010/04/ProvenanceGraph.jpg)
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- [source](http://www.b-me.de/?page_id=8)
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Provenance goes backward from the end of a flow, just like [value equations](https://docs.google.com/presentation/d/1aYSwHlz5FASAmFvBE9Z4dfOdHWKJCM5s1VZEGI0Dbn0/edit?usp=sharing).
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