What is the use of impact and urgency and risk assessment in change management?

[amse2600]

What is the use of impact and urgency within CM while we have the risk assessment questions are covering the impact and urgency, and if i have to have all of the 3 factors how to use them to calculate the Change priority?

[Mark Manders]

Then the answer is easy: leave it as is. Urgency is on their, because it is inherited from task, but not standard on the form. There's no upside, so leave it as is.

[amse2600]

Hi Mark,

after some research I think having the Impact and urgency to be determined by the change initiator and they will focus only on impact of this change on the business and the urgency for having this change done from business perspective.
Risk assessment will focus on the overall risk aspects including technical risk and its result will be used by CAB to decide on viability of approving this change, and also recommend precaution measurements / Actions.

do you agree?

[MBannis]

I too am curious about this.. What is the purpose of having the Priority and Impact fields in a change if the Risk Assessment (as far as I can tell) doesn't use those values as part of the overall risk calculation. I'm considering removing those variables from the form all together if it doesn't really add any value to the calculation of Risk. I was under the impression that like in Incident, these values would be used in conjunction with the business criticality set by the identified service to help drive either Priority / Impact / Risk Calculation or all of the above but it doesn't appear that way. 

If anyone can enlighten me further on this that would be truly awesome