![]() That’s a way to answer the following questions: How can you represent the main use cases of the app with a diagram? In UML you do this using a use case diagram. The Poster Finder app allows you to search for a movie by name and then displays its poster, if available. UML provides the tools to answer all those questions. How do you represent different states and the transitions between them? What about asynchronorus communications between objects?.How do you describe the way different objects collaborate to achieve a given task?.What’s a stereotype and how can it help you document your system?.What are the main classes and other abstractions? How are they related?.What’s the structure of the Poster Finder source code?.Who’s the Poster Finder app interacting with? And how?. ![]() In this tutorial, you’ll use UML diagrams to answer the following questions: You shouldn’t create a diagram to explain something that’s obvious. Deciding What to DocumentĪs stated earlier, each UML diagram should have a specific goal or answer a single question. However, you could use any other tool or, of course, a piece of paper. This is just one of the tools you can find online. This is an online tool for creating some basic UML diagrams with a free account. An example of this is the concept of stereotype you’ll see later.Īlthough you can draw a UML diagram on a small piece of paper, in this tutorial you’ll use. UML is a language that you can twist at your will as long as it helps describe a system.
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