Intensive processing was required to parse data in the Presentation Services layer and extract the sub-set of data needed for a specific operation.

需要大量处理工作来解析presentation services层的数据，以及提取特定操作所需的数据子集。

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Last but not least, portals have proven difficult to integrate with the party systems and processes as they do not necessarily expose services associated to their presentation layer.

最后而且同样重要的，门户已经证实了当不需要展示与他们相关联的表示层的服务时，要与一方系统和流程整合起来是困难的。

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The service requests generated by the end-users at the presentation layer are handled at the business logic layer, where the IDs are treated as configuration parameters to the business services.

最终用户在表示层生成的服务请求在业务逻辑层进行处理，在其中会将ID作为业务服务的配置参数进行处理。

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In addition, mobile developers are able to leverage the cloud for fast, complex processing of their application services before delivering the presentation layer across multiple form factors and devices to ensure great user experience.

FORBES: How The Cloud Changes Businesses Big And Small