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UML Activity Diagram. Design Elements

UML Activity Diagram is a type of Behavior Diagrams that graphically describes decomposition of the some activity on the components.

Activity Diagrams are used in modeling of business processes, technological processes, sequential and parallel computations.

UML Activity Diagram allows to show the sequence, branching and synchronization of processes.

To design UML Activity Diagrams use the following shape types:

  • rounded rectangles to describe the actions;
  • diamonds to describe decisions;
  • bars to represent the start or end of the activities that occur at the same time;
  • black circle to indicate the start of the workflow;
  • encircled black circle to indicate the end of the workflow;
  • arrows to represent the order in which activities happen.

Activity Diagrams were a specialized form of the State Diagrams in UML 1.x. In UML 2.x, the Activity Diagrams were reformed and now are based on Petri net-like semantics that allows to model a lot more situations.

The Rapid UML Solution for ConceptDraw DIAGRAM contains 13 vector stencils libraries with 393 interactive shapes that you can use to design your UML diagrams.

To design an Activity Diagram use the UML Activity Diagram library.

UML Activity Diagram library contains 37 shapes:

  • Object
  • Data store
  • Central buffer
  • Expansion region
  • Control flow (direct)
  • Control flow (smart)
  • Object flow (direct)
  • Object flow (smart)
  • Divider
  • Decision/Merge
  • Time event action
  • Send signal node
  • Receive signal node
  • Expansion node
  • Pin
  • Vertical fork/join
  • Horizontal fork/join
  • Vertical swimlane
  • Horizontal swimlane
  • Connector
  • Initial node
  • Final node
  • Flow final
  • Control flow
  • Condition
  • Symbol { }
  • Symbol << >>
  • Subactivity state
  • Call behavior
  • Frame, fragment
  • Note
  • Action
  • Swimlanes (vertical)
  • Swimlanes (horizontal)
  • UML connector (direct)
  • UML connector
  • Note connector

UML Activity Diagram library

Pic.1. UML Activity Diagram Library

UML Activity Diagram. Design Elements *

Pic.2. UML Activity Diagram Library Elements

ConceptDraw Rapid UML solution provides UML Activity Diagram library of vector stencils for activity diagram design elements like rounded rectangles of activities, diamonds of decisions, bars of the start (split) or end (join) of concurrent activities, black circle of the start (initial state) of the workflow, encircled black circle of the end (final state), etc.

Use UML Activity Diagram library to draw your own activity diagrams that show the business and operational stepwise workflows of components in your system.

UML Activity Diagram

UML Activity Diagram

All libraries for creating UML diagrams are available inside the ConceptDraw DIAGRAM Templates and samples are located in the Rapid UML section of ConceptDraw STORE.

UML Diagram Solution




TEN RELATED HOW TO's:

Symboles Organigramme →

Les organigrammes sont parfaits pour représenter visuellement des processus operationnels. Par exemple, si vous avez besoin d'afficher le flux d'un processus d'ordre personnalisé par l'entremise de divers opérateurs au sein de votre organisation, vous pouvez utiliser un organigramme. Voir aussi d'autres symboles organigramme: Symboles ordinogramme standard, symboles du flux de travail, Vérification Les symboles du schéma fonctionnel, sOrganigramme comptables des symboles, Organigramme de vente des symboles, Symboles pour organigramme des RH, Carte des symboles de processus, Diagramme de processus opérationnels, Symboles utilisés dans le schéma IDEF0.Symboles Organigramme
Picture: Symboles Organigramme
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Cisco Network Topology. Cisco icons, shapes, stencils and symbols →

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Picture: Cisco Network Topology. Cisco icons, shapes, stencils and symbols
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UML Flowchart Symbols →

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Picture: UML Flowchart Symbols
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UML Block Diagram →

Use Case Diagram Taxi Service UML. This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML Use Case Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park. This sample shows the work of the taxi service and is used by taxi stations, by airports, in the tourism field and delivery service.UML  Block Diagram *
Picture: UML Block Diagram
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Structured Systems Analysis and Design Method. SSADM with ConceptDraw DIAGRAM →

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Picture: Structured Systems Analysis and Design Method. SSADM with ConceptDraw DIAGRAM
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Cross-Functional Flowchart →

There are many tools to manage a process or to illustrate an algorithm or a workflow. Flowcharting is one of those tools. However, it may be difficult to show complex processes that require multiple attributes or several people in a simple flowchart, so a cross-functional flowchart would be a solution for that situation. To create such flowchart, group processes and steps to labeled rows or columns, and divide those groups with horizontal or vertical parallel lines. It is worth mentioning that there are different types of cross-functional flowcharts, like opportunity or deployment flowchart. This diagram shows a cross-functional flowchart that was made for a trading process. It contains 14 processes, distributed through 5 lines depicting the participants who interact with the process. Also there are connectors that show the data flow of information between processes. The cross-functional flowchart displays a detailed model of the trading process, as well as all participants in the process and how they interact with each other. The lines in the flowchart indicates the position, department and role of the trading process participants.Cross-Functional Flowchart
Picture: Cross-Functional Flowchart
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Basic Flowchart Symbols and Meaning →

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Picture: Basic Flowchart Symbols and Meaning
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