When you are learning how to build something out of wood, the rule is that you should measure twice and cut once. You measure the first time, and then a second time to confirm what you think you saw the first time.
The point of measuring twice is to double-check to make sure that you don’t waste time and materials by cutting wrong. A wrong cut can mean a wasted board. Or it could mean that you don’t build something to specification.
Your projects need the same type of measurement.
Often project leaders may only measure occasionally check into the project progress. They may believe everyone when they tell you everything is on track and working. You may even feel that you don’t have any responsibility for project failure if everyone tells you everything is ok, but it isn’t.
As a project leader, you should measure twice. It is good to get feedback from the people who are involved in the project. You can also find another way to confirm this measurement. If someone tells you that they are 90% done with the coding, ask to take a test drive of what is completed. If someone says that the design is nearly complete, ask to see the draft drawings or the prototype. There are plenty of ways that you can double-check the measurement of project progress.
There is more than one way to confirm your project’s status. Take advantage of different perspectives and avenues when determining how close to completing your project you are.