XML digital signatures define how to digitally sign part or all of an XML document to guarantee data integrity.

XML数字签名定义了如何对XML文档的部分或全部进行数字签名以保证数据完整性。

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If nothing else, running CHKDSK allows you to test the integrity of the file system, which allows you to determine whether the problem exists at the file system level or within the document itself.

退一步说，运行CHKDSK可让你测试一下文件系统的完整性，这样就能知道这是是文件系统级的问题，还是文档本身的问题。

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If one document contains the authoritative data that other documents refer to, it is more difficult to maintain referential integrity.

如果一个文档包含其他文档引用的可靠数据，就很难维护引用完整性。

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