Activity Diagram Symbols
For HR process models - adapted from Unified Modelling Language (UML) 2.1
![sample activity diagram](images/templates/activ_dig.jpg)
![start symbol](images/templates/start.png)
All activities have a point where they start.
![end symbol](images/templates/end.png)
All activities have a point where they end.
![activity symbol](images/templates/activity.png)
Each activity is described briefly.
![decision symbol](images/templates/decision.png)
In a work flow there are points where there are a range of possible circumstances, thereafter the flow separates dependent on the circumstance.
![flow symbol](images/templates/flow.png)
This shows the direction of a flow of work. E.g. in a job evaluation activity where HR communicate the grade to a department the direction of flow is from 'HR' to 'Department'
![guard condition symbol](images/templates/guard_cond.png)
An important condition that must be true for the flow to proceed. Useful in labelling flows after a decision point.
![synchronisation bar symbol](images/templates/sync_bar.png)
Various activities come together or split from this point.
![transition fork symbol](images/templates/trans_fork.png)
Represents that point at which an activity separates into two or more flows. E.g. In a job evaluation flow the point at which the grade is calculated might then split into 'Notify Grade' and 'Attach Grade to Post'
![transition join symbol](images/templates/trans_join.png)
Represents that point at which sets of different activities come together. E.g. Paper application form, CV and online application flows might all come together at 'Applications Received'
![note symbol](images/templates/note.png)
Sometimes a short piece of free text is required in a work flow.