The inventions relate generally to layered computing systems that provide public access to the content of the layers. Also disclosed herein are prioritization schemes usable in a layered computing system, including prioritization by layer type, by assigned priority weights, by access type, by sub-layers...http://www.google.de/patents/US7461096?utm_source=gb-gplus-sharePatent US7461096 - Weighted prioritizing layered computing system
