![]() Let's suppose that you can only browse and search for questions if you are not logged in.īased on your diagram, my assumption was that both authorized (logged-in) and unauthorized (not logged-in) users can browse and that you don't need any credentials/reputation to do so. I don't see any reason to replace Browsing with Search, but you can have them as independent use-cases. Should I also change Browsing to search only? While the basic notation looks similar to the traditional flow chart, it does contain many significant differences, as well as numerous enhancements that make. You can indeed say in the use case text that you must be viewing the question as a precondition for being able to perform that use-case. ![]() Open this template and add content to customize this use case diagram to your use case. ![]() Access the UML shape libraries so you can quickly create your own. Map out users’ basic interactions with a system. If you can imagine another way of reaching a question's page other than browsing, for example if somebody sends you a direct link to a question, then "post answer" and "vote" can be used completely independently of browsing. This use case diagram template can help you: - Summarize the details of your system’s users (also known as actors). Or can I simply say in my use case text that you must have selected a question as a precondition? To be honest, I am missing one use-case and that is a "login" use-case in which an unauthorized user becomes an authorized user.Īre "post answer" and "vote" an extension of browsing? Since you have to SELECT / VIEW (?) a question in order to answer or vote. To answer the question in the title first, your use-case diagram is entirely correct.
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