hierarchy of objectives
https://gyazo.com/387203606dd4ba742372a606e70bf853
For a given purpose, "Why are we doing it?" for a certain purpose, Upper Purpose comes into play. For a given objective X, "Why do it?" and after the higher-level objective Y comes up, "But the way to achieve it doesn't have to be X, right?" and X may disappear.
When you think about your personal purpose, you may ask yourself "Why? and finally come to the conclusion that "there is no reason, I do what I do because I want to do it", which is called "Purpose of Life" or "values". OKR considers a hierarchy between the goals of an organization and the goals of individuals who belong to that organization. ---
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