You can share Application Data Models (ADM) with other Enterprise Manager environments that use a different repository by exporting an ADM, which can subsequently be imported into the new repository.
An exported ADM is by definition in the XML file format required for import. You can edit an exported ADM XML file prior to import. When exporting an ADM for subsequent import, it is best to have one that uses most or all of the features—applications, tables, table types, referential relationships, sensitive columns. This way, if you are going to edit the exported file prior to import, it is clear which XML tags are required and where they belong in the file.