In short, a use is the simplest possible requirement specification to capture how an end user will interact with a solution to achieve their desired end goal. It’s a document that outlines a tool’s functionality in the context of user actions; it’s basically saying, “If a user needs this, the software helps them do that.”
Use cases focus on the users of the system, rather than the system itself, and can go a long way in helping you push forward a business case for intranet software.
“Awesome intranet, super customizable, easy to use.”
“Brilliant product, superb staff!”
“The artistry and genius of functional design makes this a joy to use.”
“They really know their stuff and really care about the long-term success of your intranet.”