Staruml use case diagram arrow software#

Sets of interactions that can occur between the various external agents, orДЄctors, while the primary actor is in pursuit of that goal. Is called primary actor for that use case. The use case is associated with the goal of one particular actor, who The goal the primary user achieves with a use case may deliver value to one or more actors, but keep in mind that only a single actor can be the primary one: if you have several actors associated to the same use case, one of them is primary and the remaining ones are necessarily secondary. Number of related activities having a common goal. Perform to achieve some outcome of value.

If more than one actor is enabled to do that, either those actors are actually a single one or the use case delivers more than a single functionality, which is wrong (quoted from here):ДЄ use case describes a discrete, standalone activity that an actor can To start with, understand that the sole purpose of an use case is to allow a given actor (the primary actor) to reach a well determined goal (defined as a set of actions that yields an observable result). Design: .Your question is conceptually rich and quite relevant since it addresses a key notion of the use case diagrams, which is the purpose of the actors.

Modeling with Composite Structure Diagram.

Creating Element by using ShortCut Generation Syntax.

Element Management by Models, Subsystems and Packages.

It is included in interaction point with other parts of system.

Staruml use case diagram arrow software#

The elements that constitute software components and the elements that implement those components can all be expressed by Component Diagram.Дeployment Diagram expresses the hardware elements of the physical computer and devices and the software components, processes and objects that are assigned to them.Д¬omposite Structure Diagram is a diagram to express internal structure of Classifier. Activity Diagram is commonly used for expressing workflow, and it is frequently used for objects like classes, packages, and operations.Д¬omponent Diagram expresses the dependency between the software components. Although Statechart Diagram is generally used to express the behaviors for instances of classes, it can also be used to express behaviors of other elements.ДЄctivity Diagram is a special form of Statechart Diagram that is suitable for expressing the activity execution flow.

Statechart Diagram expresses the static behaviors of a specific object through states and their transitions. While Collaboration Diagram is an Instance-oriented expression, Collaboration Role Diagram is a ClassifierRole-oriented expression. It is a direct expression of the collaboration model of the ClassifierRoles within a Collaboration. While Collaboration Role Diagram is a ClassifierRole-oriented expression, Collaboration Diagram is an Instance-oriented expression.Д¬ollaboration Role Diagram expresses the collaboration between the role concepts. It is a direct expression of the collaboration model of the instances within a CollaborationInstanceSet. While Sequence Diagram is an Instance-oriented expression, Sequence Role Diagram is a ClassifierRole-oriented expression.Д¬ollaboration Diagram expresses the collaboration between instances. It is a direct expression of the Interaction, which is a set of the messages exchanged between the ClassifierRoles within a Collaboration. Sequence Role Diagram expresses the interactions of the role concepts. While Sequence Role Diagram is a ClassifierRole-oriented expression, Sequence Diagram is an Instance-oriented expression. It is a direct expression of the InteractionInstanceSet, which is a set of the stimuli exchanged between the instances within a CollaborationInstanceSet. Sequence Diagram expresses the interactions of instances. Use Case expresses the functions of the system and how the system functions interact with the external actors. Use Case Diagram is an expression of relations between the use cases in a specific system or object and the external actors. Class Diagram can contain not only classes but also interfaces, enumerations, packages, various relations, instances, and their links. Class Diagram is a visual expression of various static relations of class-related elements.