What a collection does
A collection is the working area for a field program. It groups the relevant activity stream, the people involved, and the review boundary for that program.
Invitations and membership
People join a collection through invitation and are then assigned a role that reflects what they are allowed to do inside that working area.
That assignment matters because it shapes both what they can post and what they are allowed to review or manage.
Role expectations
Contributors focus on posting field activity. Editors and owners manage the collection. Read-only members consume updates without changing the evidence stream.
If a person needs to move from viewing to contributing, their role should be updated at the collection level rather than by creating a second, disconnected workflow.
Good operational practice
Keep collection membership aligned with actual field responsibility. Avoid broad access unless there is a clear review need, because collections are intended to preserve evidence clarity and operational accountability.