Guild of Project Controls: Compendium | Roles | Assessment | Certifications | Membership

Tips on using this forum..

(1) Explain your problem, don't simply post "This isn't working". What were you doing when you faced the problem? What have you tried to resolve - did you look for a solution using "Search" ? Has it happened just once or several times?

(2) It's also good to get feedback when a solution is found, return to the original post to explain how it was resolved so that more people can also use the results.

SPI/CPI and Project Change

No replies
Kai Chung
User offline. Last seen 6 years 38 weeks ago. Offline
Joined: 6 May 2016
Posts: 2
Groups: None


I understand how to calculate CPI and SPI and use them in communicating project status. However, can anyone tell me what would happen to these indicators if a project change was raised to alter the scope of delivery, which in turn impacted the time and cost to the project?

Would the project have to be re-baselined? if so, how does this affect the month-on-month comparison of the numbers?

If the project isn't re-baelined, then again, how does this affect the results?


Thanks in advance...

Rafael Davila
User offline. Last seen 6 days 12 hours ago. Offline
Joined: 1 Mar 2004
Posts: 5173

A lot of tweaking might be necessary if you want to keep old variance.

Be reminded that targeting an outdated baseline is not a good idea.