Open Data "Model" Initiative

According to MS Ignite Conference in September 2018,
Some proprietary ERP leaders will struggle together for interoperability. They will work on opening the Data Model.
What’s about a really Open Data Model involving contributors to Open systems ?

There are already lots of projects involved in Open Data Model. Can we build a common Data Model in order to take part in a more interoperable ecosystem ? Like working with Communecter or some of other

Comparing and build a common Data Model by working together on semantic and data dictionary definition for main concepts. Maintaining a common API model for Electronic Data Interchange

Is not already what UN/CEFACT and UBL are already providing?
For me, it looks like

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Some update about the Open Data Initiative by Microsoft and few