What if the Service contract changes?
如果服务契约改变了呢？
These constraints indicate what the service contract is intended to accomplish and how to measure success.
这些约束指出服务契约要完成的是什么，以及如何衡量是否成功。
Also, the service contract should be at the specification level (not at the implementation level).
而且，服务契约应处于规范级别(而非实现级别)。
This might involve using their forums for support or establishing an external service contract.
这也许涉及使用他们的论坛获取支持，或者建立一个外部服务合同。
The role bindings indicate which part of the service provider plays which role in the service contract.
角色绑定指示出服务提供者的哪一个部分在服务契约中扮演哪一个角色。
You must identify the elements that should be represented in the service contract for your SOA initiative, as different SOA initiatives need different attributes to ensure success.
您必须确定应该在SOA活动的服务契约中加以表示的元素，因为不同的SOA活动需要不同的特征来确保成功。
The Service Description Framework (SDF)... is one of those technology-neutral Service contract templates.
服务描述框架(SDF)……是一种技术中立的服务契约模板。
These attributes that define the business errors could either go into service contract or could be packaged into service response as needed.
这些定义了业务出错的属性既可以涵盖在服务合同中也可以按照需求打包进服务响应中。
Role bindings specify what role the part plays in a service contract.
角色绑定指定了该部分在服务契约中扮演什么角色。
Users do not even have to have a wireless service contract.
用户甚至不需要签订无线网络服务合同。
This is, perhaps, because the business service contract is incomplete or that there is only an informal sketch of the business requirements.
也就是说，或许因为业务服务契约不完全，或者只有业务需求的概略信息。
Rather than buy a product outright, or sign a long-term service contract, sensors can track actual usage, enabling customers to pay only for what they consume or even the value they receive.
不同于一次性购买或签订长期服务合同，传感器可以跟踪实际使用情况，允许顾客根据自己的消费内容甚至得到的价值进行支付。
Strict - Any compatible or incompatible change results in a new version of the service contract.
严格——所有兼容或不兼容的更改都将产生服务契约的新版本。
If however the point of interaction is a higher level business service contract, the individual integration points become less relevant.
然而，如果交互点是一个高层业务服务契约，那么单独的集成点就变得不那么相关了。
The vacation request form describes a service contract.
休假申请单描述了一个服务契约。
The issue deals with service contract design.
这一问题关心服务契约的设计。
The service contract is the foundation of your SOA initiative, so choose the attributes carefully.
服务契约是SOA活动的基础，因此要谨慎地选择各个特征。
When SOA was considered an integration technology, developers and even architects used to think about service interface as of a service contract with the outside world.
在SOA被认为是一种集成技术的日子里，开发者(甚至连架构师)都把服务接口认为是与外部世界签订的服务契约。
A service contract is binding on all participants in the interaction, including the service itself and the element that provides it for the particular interaction in question.
在交互过程中，服务契约与所有参与者进行绑定，包括服务本身和为特定的交互活动提供服务的元素。
It contains service adapters, which implement the service contract and expose its functionality to endpoints.
它包含了服务适配器，该适配器实现了服务契约，并将其功能暴露给终结点。
Remember when it felt really special to get a free basic cell phone when you signed a two-year service contract?
还记得你如果签一个为期两年的服务合约，就可以得到一部免费的蜂窝电话的那种特别感觉吗？
Loose - Any incompatible change results in a new version of the service contract and the contract is designed to support backwards compatibility and forwards compatibility.
松散——所有不兼容的更改导致服务契约的新版本，且服务契约的设计既支持向后兼容，也支持向前兼容。
I believe this is inappropriate, because the WSDL is supposed to represent the published service contract.
我认为这是不合适的，因为WSDL应该表示公布的服务合约。
Users will need to sign up for a two-year service contract with a data plan and pay $199.99 for the first device.
顾客需要为自己购买的第一台设备签一个为期两年的数据服务合同并支付199.99美元。
Consumer-driven contracts comprise a foundation of asserted behaviour against which we can assess the likely impact of changes to a service contract.
消费者驱动的契约提供了一个已断言行为的基础，我们可以根据它对一个服务契约的变动产生的可能的影响进行评估。
Some of the important information you might find in a service contract are described below in the next few subsections.
接下来我们将对服务契约中可能出现的一些重要信息进行描述。
Flexible - Any incompatible change results in a new version of the service contract, and the contract is designed to support backwards compatibility but not forwards compatibility.
灵活——所有不兼容的更改导致服务契约的新版本，契约的设计支持向后兼容，但不支持前兼容。
A service contract is an important aspect that helps determine an initiative's success.
服务契约是帮助确保活动成功的一个重要方面。
A service contract defines the terms, conditions, and interaction rules that interacting participants [service providers and consumers] must agree to (directly or indirectly).
服务契约定义了交互参与者(服务提供者与服务消费者)必须(直接或间接)达成一致的术语、条件和交互规则。
Downsides? Only certain carrier networks are compatible, and you'll have to shell out a monthly fee and possibly sign a service contract.
问及它的负面，这种网络需要特定兼容的网络制式，同时你不得不花费一定的月费来使用这个服务，也许还要签份服务使用合同。
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