Towards the end of the Foundations phase of Project Increment 4, with the high-level requirements agreed, Hira, has asked the Developers to estimate the work required to deliver the Eco spa solution.

(Having provided some sample estimates for Hira to review, a number of stakeholders have challenged their accuracy—some suggesting that the work has been significantly over-estimated, while others believe it has been significantly under-estimated.
What should the Developers do?)
Submit