If needed, an object can also represent more than one class.Ī package symbol is used to contain interactive elements of the diagram. Decisions are used to reflect the previous activity.ĭepicted with a rectangle shape, objects represent an instance of a class. The activity is depicted with a diamond shape in the diagram. These are used to show where a decision will be taken in the system. These interactions and objects have some symbols and notations that are used to standardize UML Structure Diagrams. On the top, you can see the beginning, and then the diagram flow descends downwards to mark the sequence of all interactions in the system. UML Sequence Diagrams are designed so that they can depict a timeline. Symbol and Components of a UML Sequence Diagram Many Businessmen also use these diagrams to understand and establish systems too.
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