CHAPTER 5Time Management: Estimating and Coming in on Schedule
On-schedule delivery is the most common yardstick for measuring project success. Yet a great many projects come in late. Schedule slippage is always very visible to the client and senior management and can wipe out the positive results of an otherwise successful project.
Often the biggest culprit is the difficulty of trying to estimate the unknown. All projects have some unpredictable components; some parts can be estimated with a reasonable confidence level but other parts can’t. This unpredictability is compounded by the levels of complexity and the number of interdependencies of the project. A wide array of estimating techniques are used to handle these components, such as bottom-up ...
