Creating an event to invoke a workflow each time a field value changes

[Manju Thangudu]

For Any changes to the field VIQMEL-PRIORK (Priority) i want a workflow to be kicked off.
 
 
 
My approach was going to be as follows:
1.  Copy object BUS2080 to Z_BUS2080.
2.  Add an event called PRIORCHGED.
3.  Add a method PRIORCHGED_METHOD
3.  Put the event in a workflow templates triggering event.
4.  In that workflow put a task that points to object Z_BUS2080 and method PRIORCHGED_METHOD.  THe logic in the method will determine what needs to be done depending ont he values of PRIORK.
 
Is this right?
 
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