It is a collaborative community providing free and open licensed data models(more than 1000) for any data-driven system. More than 100 organizations. Free join.
Now you can validate any payload against any SmartDataModel in the frontpage just by putting the url (publicly accessible) to your payload . Right part of the main page smartdatamodels.org
We've changed the links to the domains in the front page by pages taking to GitHub subjects. What for? To understand better what is interesting for the users. Feedback welcomed
This article mdpi.com/2078-2489/15/5/257 is dealing with data models for Satellite Imagery and Flood Risk Assessment. It also assess the usability of the data models with good results.