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Draw.io activity diagram8/21/2023 ![]() The flow final node is depicted as a circle with a cross inside. The activity final node is depicted as a circle with a dot inside. ![]() ![]() There are two types of final node: activity and flow final nodes. Its notation is a line with an arrowhead.Īn initial or start node is depicted by a large black spot, as shown below. The following diagram shows an action with local pre- and post-conditions.Ī control flow shows the flow of control from one action to the next. Actions are denoted by round-cornered rectangles.Ĭonstraints can be attached to an action. An activity is shown as a round-cornered rectangle enclosing all the actions, control flows and other elements that make up the activity.Īn action represents a single step within an activity. The following sections describe the elements that constitute an activity diagram.Īn activity is the specification of a parameterized sequence of behaviour. Activity diagrams are useful for business modelling where they are used for detailing the processes involved in business activities.Īn Example of an activity diagram is shown below. They may be used to detail situations where parallel processing may occur in the execution of some activities. Activity diagrams show the workflow from a start point to the finish point detailing the many decision paths that exist in the progression of events contained in the activity. ![]() In UML, an activity diagram is used to display the sequence of activities. UML 2 Tutorial - Activity Diagram Activity Diagrams ![]()
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