Rüdiger Schack

Quantum Bayesianism is an effort to interpret all the probabilities arising in quantum theory (our most accurate physical theory to date, the one ultimately responsible for almost all of modern technology) in terms of the Bayesian conception of probability – that probabilities quantify subjective degrees of belief, rather than objective features of nature.

Recently Cabello (arXiv:1509.04711) introduced a taxonomy of quantum interpretations with regard to what they attempt to say of reality.

QBism (pronounced cubism) is an interpretation of quantum mechanics that takes an agents actions and personal experiences as the central concerns of the theory.