When designing a business application, the scope (or power) of each remote operation ultimately depends on the transaction requirements of the application. However in general, it is a good practice to make operation requests as powerful as possible in order to hide the details of the business application ABL from the client programmer.
Also, the more power that remote operations have, the fewer requests must be made from the client to accomplish tasks over the network, thus reducing the opportunity for the network to be a bottleneck.
