The first level consists of the performance object, which is a unit that can model a physical device or abstract component in a system.

第一级包括性能对象，它是可以为物理设备建模，或者抽象系统中组件的单元。

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Data is retrieved from the location Data Provider — a Data Abstract Layer (DAL) component — which caches all locations in memory.

从位置数据提供者检索数据，这是一个数据抽象层(DAL)组件，在内存中缓存所有位置。

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We need to tell the code generator which component type will expose this abstract behaviour, so we will create a componentType file.

我们需要告知代码生成器，哪个组件将公开此抽象行为，因此我们创建了一个组件类型文件。

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