  This technical report presents MOSaiC 3.6.2, a web-based collaborative
platform designed for the annotation and evaluation of medical videos. MOSaiC
is engineered to facilitate video-based assessment and accelerate surgical data
science projects. We provide an overview of MOSaiC's key functionalities,
encompassing group and video management, annotation tools, ontologies,
assessment capabilities, and user administration. Finally, we briefly describe
several medical data science studies where MOSaiC has been instrumental in the
dataset development.
