软件应用程序必须满足不同的涉众需求，因此描述这些系统的模型也一定具有复杂性。
Software applications must satisfy a diverse set of stakeholder needs, and consequently, the models describing these systems must likewise be complex.
软件系统的复杂性决定了模型本身的复杂性。
The complexity of system software determines the complexity of model itself.
一个软件系统模型由多个不同的视图来描述，每一个视图只展现某一个视角所关心的内容，其结果是一个模型的复杂性被分割并被分配到一个个视图中。
A software system model is described by many different views, but each view only show certain content from some aspects, as a result, complexity of a model is separated into many different views.
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