Pedestal modelling is crucial to predict the performance of future fusiondevices. Current modelling efforts suffer either from a lack of kineticphysics, or an excess of computational complexity. To ameliorate theseproblems, we take a first-principles multiscale approach to the pedestal. Wewill present three separate sets of equations, covering the dynamics of EdgeLo- calised Modes, the inter-ELM pedestal, and pedestal turbulence,respectively. Precisely how these equations should be coupled to each other arecovered in detail. This framework is completely self-consistent; it is derivedfrom first principles by means an asymptotic expansion in appropriate smallparameters. The derivation exploits the narrowness of the pedestal region, thesmallness of the thermal gyroradius, and the low plasma $\beta$ typical ofcurrent pedestal operation to achieve its simplifications. The relationshipbetween this framework and gyrokinetics is analysed, and possibilities todirectly match this framework onto multiscale gyrokinetics are explored. Adetailed comparison between our model and other models in the literature isperformed. Finally, the potential for matching this framework onto anopen-field-line region is discussed.
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