Design Model

The design model contains an expression of the logical structure and behavior of the application's main objects. At the highest level, the design model is partitioned into architectural tiers (i.e., client, presentation, business, and data).

Client Tier

The client tier is limited to the objects and collaborations that execute in the client browser. Each Web page in this application contains a pop-up menu implemented with JavaScript. The menu is modeled by the «client script object» menu. Most pages define two instances of the menu: one main menu (actionMenu) and one submenu (browseMenu).

The Menu class contains member variables of type Array, shown in Figure E-7 as associations to the JavaScript Array object. The complete JavaScript ...

Get Building Web Applications with UML Second Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.