Suppose your team creates a glossary. Typically the Iteration property would track the state of each document. But to track the current state of each glossary item more precisely the team decides that every item requires – besides the mandatory name and short description – at least a description (document section), a list of translations (document section), and Linguistic Information (property). The initial glossary (of four items) looks like this: 
We add the progress tracker on a Space Index and may configure access restrictions so that this page is only visible to page authors. 
So the following items will be shown as incomplete. 
Adding the Linguistic Information (document property) does not remove any entry. 
After adding translations (document sections) to the remaining three, only two items are rendered as incomplete. 
And after adding a description section (document section) for the doctype item, there is only one item marked as incomplete.  Image Removed Image Added
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