Resource-Event-Agent Model

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= In the early 1980s Bill McCarthy first defines Resource-Event-Agent (REA) model for accounting systems and publishes many papers on the topic.


History

Bob Haugen:


  • Mid 1990s: Bob Haugen commercially develops 'Quick Response Engine' & becomes interested in supply chain systems.
  • 1995-2000: Bob discovers REA, he and Bill further develop REA as a semantic model for internet supply chain collaboration.
  • 2000: Verna Allee coins the term "Value Network" to describe and model tangible & intangible economic value within organisations.
  • 2002: ISO adopts REA as their economic and accounting ontology.
  • 2005: Bob begins to write to the importance of expanding REA to cover ad-hoc networks of external economic entities.
  • 2005-2011: Bob works closely with Lynn Foster under the name 'Mikorizal Software' on several open supply chain projects; targeting timber, food networks & fishing industries.
  • 2012: Open hardware manufacturer Sensorica gets involved with REA and coins the term "Open Value Network" (OVN). They develop the Network Resource Planning (NRP) software in collaboration with Bob & Lynn. This is the first iteration of the software on which django-rea and its forks are based.
  • NRP system architecture presentation (mandatory reading!)
  • 2016: Bill expands upon the concept of an Open Value Network, building on his prior REA model.
  • OVN / REA presentation slides
  • Q1 2016: Sensorica's NRP software is forked by FreedomCoop and becomes OCP (Open Collaboration Platform). Many updates are made and integrations with economic networks (FairCoin) begin.
  • Q3 2016: Another fork of NRP is made by GoPacifica and further development continues on that project.
  • 2016-2017 Lynn and Bob join with others to continue work on developing the REA ontology, incorporating learnings from prior projects & concepts, including NRP & OVN, as well as others. The project name is genericised to "Value Flows" and becomes focused on working towards common standards.
  • Dec 2016: Valueflows team members discuss and outline requirements for a modular & community-centered design process around OVN-compatible apps.
  • Q1 2017: Members from GoPacifica, FreedomCoop, Sensorica & Mikorizal begin to collaborate on unifying the multiple forks of NRP to a single generic codebase so that development effort can be shared."

(https://github.com/django-rea/rea-app/wiki)


Example

REA Client Application Interface

"This application attempts to be a new frontend to existing 'Open Value Network' client / server apps." (https://github.com/django-rea/rea-app/wiki)

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