Claudio De Sio Cesari --- Activity Diagram Syntax Reference --- http://www.claudiodesio.com

Activity Diagram Syntax Reference

Element name

Syntax

Synopsis

Activity

Activity: system process.

Flow

Flow (activity flow): set of scenarios regarding a user common target .

Branch & Merge


Branch


Merge

Branch: a conditional choice.
Merge: a termination point for conditional blocks.

Fork & Join


Fork


Join

Fork: starting point for concurrent activities.
Riunione:
termination point for concurrent activities.

SwimLane

Swimlane: competence areas for the activities.

Start & End


Start


End

Start:starting point for a state transition diagram.
End:
termination point for a state transition diagram.

Object & State


End


State

Object: phisical creation (or instance) of a class.
Stato: object state. It can be specialized with actions (internal transitions).

Claudio De Sio Cesari --- Activity Diagram Syntax Reference --- http://www.claudiodesio.com