WIZZ-DOM

In the initial stages of a project, estimates of time and resources are typically off by a factor of four in each direction. The exact requirements and resources available aren't clear, and can be four times too high or too low. This is the "Cone of Uncertainty", a term coined by Stephen McConnell in his book Software Estimation: Demystifying the Black Art... It's challenging to operate within uncertainty. Say you have an agile DevOps team working on a project to build a solution for the organisation. There's a need to plan and coordinate resourcing for testing, change management, training and implementation. But the DevOps team won't make any estimates or commitments because they're in the cone of uncertainty... This uncertainty makes estimates difficult. But there are some tools and techniques to help remove some of the variability.