After determining what an application must do, it is equally important to define how users access those functions. Understanding use cases allows you to map out, in laymen's terms, how a user will access functions of your application. Learn how to write use cases for virtually any programming application with this online video.
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Once we've gotten some basic requirements together for the first iteration, our…list of what this application must do.…And this could be written in a requirements document or statement of work or…just some bullet points on a white board.…We can start to describe our app in more detail, and what we do in this step…will make it much more obvious, the classes that we need to create, and to do…this we switch our focus.…We go from the feature focus requirements where we said the system must or the…application must, now to a user focus.…
How does the user accomplish a particular goal with our application?…And the aim is to write these in everyday language as non-technical as possible.…A typical user of this app should be able to read one of these descriptions and understand it.…Now as ever, there is no one required way that you must write these, but there…are two formats commonly used in this phase of the design process.…One is called a Use Case, and the other is a User Story, and we're gonna talk about both.…
Let Simon Allardice introduce you to the terms—words like abstraction, inheritance, polymorphism, subclass—and guide you through defining your requirements and identifying use cases for your program. The course also covers creating conceptual models of your program with design patterns, class and sequence diagrams, and unified modeling language (UML) tools, and then shows how to convert the diagrams into code.
- Why use object-oriented design (OOD)?
- Pinpointing use cases, actors, and scenarios
- Identifying class responsibilities and relationships
- Creating class diagrams
- Using abstract classes
- Working with inheritance
- Creating advanced UML diagrams
- Understanding object-oriented design principles