Security on attribute level enforced also during workflow execution.

在执行工作流期间实施属性级的安全措施。

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Since XML is not a behaviorial language, polymorphism occurs at the attribute level.

因为 XML 不是行为语言，所以多态性出现在属性级别。

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Transformation rules at the attribute level, documented using Object Constraint Language (OCL).

属性级的转换规则，用目标约束语言（Object Constraint language，OCL）编制而成。

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