The last option of the menu, now include the forms to join the SDM community in the different roles:
Board Member: Organization managing the SDM together with the existing members FIAWRE, TMForum, IUDX and OASC
Contributor: People who bring new / update data models
Adopter: Organization or project using some of the data models
User: People willing to be informed about the updates on the Smart Data Models initiative
Slack channel
Validate a payload with a data model