Bottom Up Estimating A technique for estimating overall project duration, effort, or costs by estimating the lowest levels of activities and aggregating those numbers up.Share this:Click to email this to a friend (Opens in new window)Click to share on Twitter (Opens in new window)MoreShare on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on LinkedIn (Opens in new window)Like this:Like Loading...