A product is always alive. It is constantly in, or moving between, six stages of product management. Products rarely travel in a straight line — they move through and between stages as they evolve. At each stage there is work to do, and tools to help you do it well. Find the stage your product is in, find the job you are doing, and open the tool you need. The Centre of Excellence maintains the Playbook and partners with you on the work.
You are not expected to use every tool. Use the ones you need, when you need them, to elevate product performance.