CloudEdit is an extremely simple document editing app. Here are the specs:
Users should see a list of the latest documents. To edit, the user
clicks the document in the list. Users should be able to edit
documents with a title and body, and should be able to save their
edits to the server. Users should be able to create new documents.
In the paragraph above, we can see that the auther using should be, but It's kind of means "will be", means something like "if you open it, you will see...blah". What is the grammar behind this?
Answer
It's common to use this language in a specification to indicate the desired behavior of features that may or may not yet have been written.
Specifications I have read (usually in the form of PRDs -- product requirements documents) tend to use the more assertive "will".
However, it's not ungrammatical to use "should." The Chicago Manual of Style says:
Should often carries a sense of expectation.
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