SubscribeEstimating Realistic Project Deadlines
Tuesday June 28th 2005, 11:04 pm
Written by: Brian Benzinger
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I stumbled apon the article, Estimating Realistic Project Deadlines, via Particletree. This is something that many of us had to do once before. Estimate the time to complete a project. It is very difficult as you probably know and I usually have to give it a big guess on how long it will take. But for my next project, I am going to give this equation a try and see how well it matches up:
Te=(To+4Tm+Tp)/6
- Te = Realistic time estimate
- To = Most optimistic time estimate (the Sunny Side estimate with no setbacks)
- Tp = Most pessimistic time estimate (with every obstacle happening)
- Tm = Most probable time estimate (this makes you think realistically; some setbacks happen, others don’t)
Let’s say we have a project of developing a departmental newsletter. The variables break down as follows:
- Tm = 14 days
- To = 10 days
- Tp = 30 days
The calculation would be:
Te = (10+(4X14)+30)/6
The best estimated duration for the project would be 16 days.
Continue reading the article, Estimating Realistic Project Deadlines, from Open Loops.
# 1. Logo Designers on Jun 16, 2008 at 10:10 am
Now this is an awesome formula. Something I can definitely use instead of pulling a date out of thin air ( I know thats bad) I like this b/c its 3 dates and gives your client a range……
# 2. Internet Website Design on Jun 26, 2008 at 7:21 am
I read about this formula in a book by Lynne Snead called “To Do, Doing, Done”. Great book with lots of sound advice.