Activities are tasks that must occur to reuse an asset and are
stored in the asset’s manifest file. When a user imports the asset, the Import
wizard reads the activities from the manifest file. Some activities will be
performed automatically by the wizard and some may need to be performed manually
by the user.
CAUTION:
Modifications to the generated activities of RAS manifest
files may render the manifest file incompatible. If you are not an expert
at hand-coding manifest files using the Reusable Asset Specification, do not
modify the generated activities. Instead, add additional activities as needed.