Operation principal translates a high level technical step.
It is the highest technical unit.
The operation principal is stack specific and is the operation which has the highest priority in the stack.
For equal priority, the first declared operation in the analysis profile is considered.
This implies that the master profile operations will take precedence over the shared ones for an identical priority.
If no operation is identified in the stack, operation principal is set as OTBI.
Priority is an analysis pattern attribute.