Programming Models and Synchronization Techniques for Disconnected Business Applications - Advances in Computers - page 92

F IG . 2. Order entry sample application: agents and items.
Figure 2 shows the internal structure of an agent and line-item, and Fig. 3 shows
the internal structure of the customer entity.
Figure 4 shows how an order has references to both the agent who placed the order,
and to the customer for whom the order was placed.
As we shall show, the relative lack of complexity in order entry does not detract
from its ability to illustrate some of the key issues in building disconnected business
applications.