delegation definition

All,
Today, we decided to replace the term Responsibility by Delegation.
Inspired by suggestions from Tim and Stephan, I drafted a definition:

/Delegation is the assignment of authority to an agent (by itself or by 
another agent) to carry out a specific activity as a delegate or 
representative, while the agent that it represents remains responsible 
for the outcome of the delegated work.
/
Thoughts?

Cheers,
Luc