As part of the proposed inventory management and control system, currently being designed for Riordan Manufacturing, this document represents the basic structure of the Customer Shipping and Billing application, user interface (UI), which will be available as a WebApp, via the Riordan corporate intranet site. For this presentation, sequence diagrams were used to depict the user's experience in two models: 1.) User login and 2.) Sales Order Entry.
Sequence diagrams enable developers to illustrate "communication between objects" (in this case, user interface screens) "during the execution of a task".