Pseudo Document Types
Pseudo Document Types allow for the placement of images in multiple locations.

However, a pseudo Document Type points to an existing Document Type and stores all database information in the same tables.

For example, there may be two sites that process purchase invoices and the purchase invoice data is to be stored in one Document Type (say, Pinvs) so that both sites can access the data from the one database table.

However the network between the two sites is slow and cross viewing of images between sites is minimal.

One Document Type, Pinvs, is set up, but two pseudo sites are created both pointing to the Pinvs Document Type.

The two pseudo sites are set up with local volumes.

The majority of images are thus retrieved locally.

Only when one site wishes to view another sites images is there any cross network traffic.