The activities are initiated at the initial node and are terminated at the final node. The control flow of activity is represented by control nodes and object nodes that illustrates the objects used within an activity. It may contain action nodes, control nodes, or object nodes. In other words, it can be said that an activity is a network of nodes that are connected by edges. The categorization of behavior into one or more actions is termed as an activity. Components of an Activity Diagramįollowing are the component of an activity diagram: It encompasses activities composed of a set of actions or operations that are applied to model the behavioral diagram. It is also termed as an object-oriented flowchart. The flow can be sequential, branched, or concurrent, and to deal with such kinds of flows, the activity diagram has come up with a fork, join, etc. It put emphasis on the condition of flow and the order in which it occurs. The activity diagram helps in envisioning the workflow from one activity to another. It models the concurrent and sequential activities. Simply click the template to open it in the Creately editor to apply changes.In UML, the activity diagram is used to demonstrate the flow of control within the system rather than the implementation. Component Diagram Examplesīelow are component diagram templates for common scenarios that you can instantly edit online. Step 5: You can attach notes on different parts of your component diagram to clarify certain details to others. to your component diagram and complete it. Step 4: Next step is to add other elements such as interfaces, classes, objects, dependencies etc. Step 3: As you draw the diagram, add components first, grouping them within other components as you see fit Step 2: As you figure out the relationships between the elements you identified earlier, create a mental layout of your component diagram in your system or application that you need to represent in your diagram. Step 1: figure out the purpose of the diagram and identify the artifacts such as the files, documents etc. Following are the steps you can follow when drawing a component diagram. It helps you get an idea of the implementation of the system. You can use a component diagram when you want to represent your system as components and want to show their interrelationships through interfaces. DependenciesĪlthough you can show more detail about the relationship between two components using the ball-and-socket notation (provided interface and required interface), you can just as well use a dependency arrow to show the relationship between two components. Port (represented by the small square at the end of a required interface or provided interface) is used when the component delegates the interfaces to an internal class. This shows that one component is providing the service that the other is requiring. The assembly connector allows linking the component’s required interface (represented with a semi-circle and a solid line) with the provided interface (represented with a circle and solid line) of another component. Interfaces in component diagrams show how components are wired together and interact with each other. Provided Interface and the Required Interface The component stereotype is usually used above the component name to avoid confusing the shape with a class icon.Ģ) Rectangle with the component icon in the top right corner and the name of the component.ģ) Rectangle with the component icon and the component stereotype. There are three ways the component symbol can be used.ġ) Rectangle with the component stereotype (the text >). We have explained below the common component diagram notations that are used to draw a component diagram.
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