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UML Activity Diagram. Design Elements

UML Activity Diagram illustrate the business and operational step-by-step workflow of components in a system and shows the overall flow of control.
This vector stencils library contains 47 SysML activity diagram symbols.
Use it to design your SysML activity diagrams using ConceptDraw PRO diagramming and vector drawing software.
"Activity diagrams are constructed from a limited number of shapes, connected with arrows. The most important shape types:
- rounded rectangles represent actions;
- diamonds represent decisions;
- bars represent the start (split) or end (join) of concurrent activities;
- a black circle represents the start (initial state) of the workflow;
- an encircled black circle represents the end (final state).
Arrows run from the start towards the end and represent the order in which activities happen." [Activity diagram. Wikipedia]
The vector stencils library "Activity diagram" is included in the SysML solution from the Software Development area of ConceptDraw Solution Park.
Action
Action, action,
Call behavior action
Call behavior action, call behavior action, action,
Accept event action
Accept event action, accept event action,
Accept time event action
Accept time event action, accept time event action,
Send signal action
Send signal action, send signal action,
Activity
Activity, activity, frame,
Activity final node
Activity final node, initial node, activity final node,
Flow final node
Flow final node, flow final node,
Activity parameter node
Activity parameter node, activity parameter node,
Control operator node
Control operator node, control operator node,
Control operator - frame
Control operator - frame, control operator frame,
Decision/Merge node
Decision/Merge node, decision node, merge node, control node, activity node,
Fork/Join node
Fork/Join node, fork node, join node, control node,
Initial node
Initial node, initial node, control node,
isControl
isControl, isControl node, action,
isStream
isStream, isStream node, action,
isStream 2
isStream 2, isStream node, action,
isStream 3
isStream 3, isStream node, activity parameter node,
Local precondition
Local precondition, local precondition node, action,
Local postcondition
Local postcondition, local postcondition node, action,
NoBuffer
NoBuffer, noBuffer node, action,
Object node
Object node, object node,
Object node 2
Object node 2, pin, object node, action,
Optional
Optional, optional, action,
Optional 2
Optional 2, optional, activity parameter node,
OverWrite
OverWrite, overwrite, action,
Parameter set
Parameter set, parameter set, action,
Parameter set 2
Parameter set 2, parameter set, activity, frame,
Probability
Probability, probability, action,
Probability 2
Probability 2, probability,
Rate
Rate, rate,
Rate 2
Rate 2, rate,
Rate 3
Rate 3, rate,
Rate 4
Rate 4, rate,
Rate 5
Rate 5, rate, activity parameter node,
Rate 6
Rate 6, rate, action,
Control flow
Control flow, control flow, action,
Control flow 2
Control flow 2, control flow, action,
Object flow
Object flow, object flow, action,
Object flow 2
Object flow 2, object flow, action,
Probability path
Probability path, probability,
Rate path
Rate path, rate,
In block definition diagram, activity, association
In block definition diagram, activity, association, block definition diagrams, activity, association, activity, frame, activity,
Activity partition
Activity partition, activity partition, swimlane,
Activity partition - action
Activity partition - action, action, activity partition,
Interruptible activity region
Interruptible activity region, structured activity node, interruptible activity region,
Structured activity node
Structured activity node, structured activity node,
This purchase order processing UML activity diagram was created on the base of activity diagram from the software architecture documentation wiki of the Software Engineering Institute (SEI) of Carnegie Mellon University (CMU).
[wiki.sei.cmu.edu/ sad/ index.php/ Image:PurchaseOrderActivityDiagram.png]
"A purchase order (PO) is a commercial document and first official offer issued by a buyer to a seller, indicating types, quantities, and agreed prices for products or services. Acceptance of a purchase order by a seller forms a contract between the buyer and seller, so no contract exists until the purchase order is accepted. It is used to control the purchasing of products and services from external suppliers.
Creating a purchase order is typically the first step of the purchase to pay process in an ERP system." [Purchase order. Wikipedia]
This purchase order processing UML activity diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the ATM UML Diagrams solution from the Software Development area of ConceptDraw Solution Park.
UML activity diagram of purchase order processing
UML activity diagram of purchase order processing , send signal action, initial node, horizontal swimlanes, activity partition, activity group, fork node, join node, decision node, merge node, activity final node, activity edge, object flow edge, action, accept event action,