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An actor [1] in the Unified Modeling Language (UML) "specifies a role played by a user or any other system that interacts with the subject." [ 1 ] "An Actor models a type of role played by an entity that interacts with the subject (e.g., by exchanging signals and data), but which is external to the subject."
Examples of predefined UML stereotypes are Actor, Exception, Powertype and Utility. Structure diagram; Superstate - construct allowing several States which share common Transitions and Internal Activities; Swim lane - synonym for Partition; System model - The logical UML model being represented through one or more UML diagrams
A use case diagram [1] is a graphical depiction of a user's possible interactions with a system. A use case diagram shows various use cases and different types of users the system has and will often be accompanied by other types of diagrams as well. The use cases are represented by either circles or ellipses. The actors are often shown as stick ...
Fig.11 Aggregation Fig.12 Example aggregation. Sometimes the needs exist to assign properties to concepts. Properties are written in lower case, under the concept name, as is illustrated in Figure 11. In Figure 12 an example of a concept with properties is visualized. The concept FEATURE has four properties, respectively: priority, type, risk ...
In software and systems engineering, a use case is a potential scenario in which a system receives an external request (such as user input) and responds to it. A use case is a list of actions or event steps typically defining the interactions between a role (known in the Unified Modeling Language (UML) as an actor) and a system to achieve a goal.
Thus one has to transform the i* model into a UML model. One can do this by using the following guidelines: actors: actors can be mapped to class aggregation, tasks: tasks can be mapped to class operations. For example: a task between a dependent actor and a dependence in the SD model corresponds to a public operation in the dependence UML class,
In software engineering, a class diagram [1] in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, operations (or methods), and the relationships among objects.
In UML, become is a keyword for a specific UML stereotype, and applies to a dependency (modeled as a dashed arrow). Become shows that the source modeling element (the arrow's tail) is transformed into the target modeling element (the arrow's head), while keeping some sort of identity, even though it may have changed values, state, or even class.