Using a state chart diagram (see Figure 2) can help to determine the interface (JSP) transitions for the portlet.

使用状态图表(state chart diagram)(请参见图2)可以确定portlet的界面(JSP)转换。

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Before diving into flow implementation details, lets first take a look at the graphical state chart diagram for the page flow (shown below).

在深入流转实现细节前，我们先看一下页面流转的状态图(如下图)。

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The sequence diagram and the state chart diagram describe the system dynamic behavior from different viewpoint, which illustrates the software dynamic model.

序列图和状态转移图从不同的角度描述系统的动态行为，建立系统的动态模型。

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