One of the most important journey's our customers go on while building an IoT application is the journey to make sense of, and make decisions off of, the data that their sensor are generating. The data decision hierarchy helps them navigate the path to get there.
If you've ever seen Maslow's Hierarchy of Needs, you may notice some similarities. In Maslow's pyramid (pictured below) he theorized that people's needs change as they reach certain points in their life. Once they are satisfied physiologically (they have food, shelter, sex, etc), then they begin to look for safety. Once they've achieved that, they pursue loving and belonging. And on it goes. We see the same pattern emerge for organizations that want to make decisions from the information coming off of their distributed assets.