Figure 4 illustrates an example of the contract model for the USA store.

图4显示了美国商店契约模型的一个示例。

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Before we get into the details, let's step back and look at the contract model to get an understanding of the business objects involved.

了解详细信息之前，我们先回头看一下契约的模式，以便理解涉及的业务对象。

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The message model, which defines the contract between the process and its supporting services, is therefore minimal, based only on a small number of key values.

因此，消息模型(它们定义流程与其支持服务之间的合约)占用的数据非常少，只使用了少量关键值。

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The rest of the world knows differently and the carrier model sits alongside the contract-free option quite nicely.

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Excluding non-cash expenses, COGS increased 4% year over year primarily due to an increase in customer premise equipment sales since the launch of our no contract retail model, which requires customers to purchase rather than lease devices, at the beginning of 2012.

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The Justice Department's lawyer, Mr. Buterman, said the contract provision all but assured publishers would beg off the wholesale model, to avoid having to match lower prices and absorb the margin loss.

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