Article: The use case explains the goal of the technology or process, not how the technology functions. In other words, a use case about logging in to software does not include how the code must be written or how the technological components are connected. It simply focuses on what the user needs to do and how the software responds.  Get the level of detail right. For example, if writing a use case about implementing technology, don't exclude details about how the software responds to users. Alternatively, adding too much detail about how the software functions reads more like system design implementation than a use case. Use cases do not need to include complex flow charts or visual diagrams that explain the process. Simple flow charts can often be used to clarify information. However, the use case should be largely word-based. The style of writing should be very simple so that others can read and comprehend it without specific training. Writing a good use case helps you learn exactly how a piece of software or business process works. It educates you and the reader about the correct use of applicable vocabulary. This way, you know you are not using technological terms incorrectly or gratuitously. You can learn to discuss technology and business processes in a way that is useful and valuable to others in the business community.
What is a summary of what this article is about?
Capture what the technology or business process does. Keep the use case primarily textual. Learn the most relevant details.