https://docs.roboflow.com/datasets/annotation-groups
Annotation Groups | Roboflow Docs
Learn how annotation groups let you share classes and annotations across projects.
annotation groupsroboflow docs
https://www.w3.org/groups/wg/annotation/
Web Annotation | Working Groups | Discover W3C groups | W3C
The mission of the Web Annotation Working Group, part of the Digital Publishing Activity, is to define a generic data model for Annotations, and define the...
working groupswebannotationdiscoverw3c