SLA内容可以非常宽泛，也可以非常的详细，并且通常包括服务提供商和客户在出现故障时应当采取的步骤。
An SLA can be either very general or extremely detailed and generally includes the steps that should be taken by the service provider and the client in the event of failure.
其中每个阶段各包括若干步骤，它们都会在下面详细展开，以介绍其中用到的标准。
To each of these phases there are a number of steps, which will be detailed in relation to the standards used to execute each step.
图4中列出了详细的流程，其中应该包括以下步骤。
The detailed process has been outlined in Figure 4 and should include the following steps.
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