In the two decades I’ve been working with people around behavior change, I’ve been exposed to a lot of models, from personality models, to change models, to conflict models, even models I’ve made up myself because nothing else seemed to work. What they all have in common is they claim to unlock the key to behavior change.
A model is any system or framework that attempts to organize knowledge in a more understandable and useful way. I assume the purpose of a model is to help common folk like you an I make sense of complicated stuff so we can be more effective in our lives. For me the real question becomes, “Does it make sense and am I more effective using it?”