As a consultancy, we live and die by the accuracy of our estimates. It’s profoundly critical to delivering on one of our core values, creating an exceptional customer experience. Whether you’re a consultant or an internal resource, you always are asked to provide estimates, however formal they may be.
As the book describes, you should practice not providing an estimate until you have had time to do the research and set realistic goals. With each iteration, you should compare your true time to execute each component with its initial assessment. Like fine wine, or the best machine learning algorithm on the market, you’ll only get better with age!