AEM DAM is enterprise level scalable DAM system and Bridge is just a
desktop one for local repository.
https://helpx.adobe.com/experience-manager/6-3/assets/using/medialibrary.html
Assets is a digital asset management tool that is fully integrated with
the AEM platform and enables your enterprise to share and distribute
digital assets. Users across an organization can manage, store, and
access images, videos, documents, audio clips, and rich media such as
Flash files for use on the web, in print...