In the user authentication process we describe, the messages show how a user enters information into the browser to gain access to the webpage and how the web browser will then cross-check credential to the designated application.

What information is passed from one object to another? The other set of components you must identify are the messages the objects will send. The objects, sometimes called actors, are the principal players that perform tasks and send messages.įor example, in a login sequence, two of the objects would be the potential visitor or user and the login page a visitor uses to interact with the platform they’re attempting to log into. (Other diagram types have since been contributed.) It is open-source and cross-platform software.

Violet is a UML editor with these benefits: Very easy to learn and use. It draws class, sequence, state, object and use-case diagrams. Violet UML Editor Violet is an open source and free UML editor intended for developers, students, teachers, and authors who need to produce simple UML diagrams quickly. Of these six diagram types this tutorial covers use-case. Violet is a lightweight UML editor, intended for students, teachers, and authors who need to produce simple UML diagrams quickly. The first necessary set of components are the objects. Violet UML supports the production of use-case, class, sequence, state, activity and object diagrams. To accomplish these goals, you must first identify the components of your system that should be diagrammed. Map out a real or hypothetical scenario that has many different components. See how objects and components interact with each other in sequence to complete a process. Model how a complex procedure or system operates. A sequence diagram is a form of interaction diagram which shows objects as lifelines running down the. You can accomplish several critical tasks with a sequence diagram.

Violet uml editor sequence diagram