OER本身就是这些挑战之一，不过也可能是一种满足个别机构需要的健全策略。

OER is itself one of these challenges, but may also be a sound strategy for individual institutions to meet them.

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一个变更和规划的预期将有助于阐明个别业务策略的范围和需要在初始设计中确定和测试的业务规则语义。

An anticipation of change and planning will help clarify the range of individual business policy and business rule semantics that need to be captured and tested in the initial design.

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因为在标准的各个版本中这些xml元素的含义一般不会发生变化，个别工具可能会在处理策略文档时选择忽略名称空间差别。

Because the meanings of XML elements are largely unchanged across versions of these standards, individual tools may choose to ignore the namespace differences when working with policy documents.

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