Collaborative / Combined Knowledge ties the HU to the EM. Collaborative or Combined knowledge means the expectation that everyone in the group contributes to the hazard discussion and mindset exchange. Collaborative decisions are a core of the Canadian avalanche risk management framework. One finds them in our operational meeting format, our terrain coding guidelines, and our workplace expectations. Collaborative decisions are consistently better than individual ones. No individual is given the expert halo; no one individual sets the objective.