Existing schema and data model references

[itsrobli]

The goal of this thread is to compile listings of common schemas/data models that exist in the industry.

OSCRE:

https://www.oscre.org/Functions-in-the-OSCRE-Data-Model

OSCRE Conceptual Data Model.pdf
Original: https://www.oscre.org/Portals/18/Whitepapers/OSCRE%20Conceptual%20Data%20Model.pdf?ver=2018-06-27-190847-267

REAXML - commonly used in the domain of residential real estate listings

REAXML Documentation
REAXML Specifications