You need to register your namespace in AEM in order for metadata to sync from the metadata node to the XMP record in the asset binary.http://blogs.adobe.com/contentmanagement/tag/namespace/Once you register the namespace, then you can add metadata with your registered prefix onto the metadata node. ...

The Related node stores information about assets on which the asset depends, or which depend on the asset. Consider an Illustrator file that includes links to several images that are stored in AEM. The Related node will keep track of those images that are components of the Illustrator file. In addit...