When any user opens the document again, the header activates a link to the stored file attachment.

当任何用户再次打开该文档时，头部激活了指向被存储的文件附件的链接。

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If the user opens the document in edit mode, of course, the drop-down list will calculate normally.

如果用户以编辑模式打开文档，则下拉列表当然会正常地计算。

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A user is considered online when the user status document is modified no later than two minutes previously.

如果对用户状态文档的修改未超过两分钟，则认为该用户处于在线状态。

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Which is more of a security threat, a user uploading a document for access on the go to a webmail account or to a service like Dropbox, or a document in the cloud, accessible via a smartphone but which does not allow you to download and store data on that smartphone?

FORBES: Collaboration in the Cloud -- Why Aren't You doing it?

With the new system the organisation could turn off access to that document for every user, and I would be unable to open it.

BBC: Pencil and paper

Following these links allows a user to travel effortlessly from one document to another.

ECONOMIST: Hits and misses