Locality in a web of streams

A framework for addressing the challenges inherent in the complexity of contemporary Web architecture is identified. The design of cost-effective multilevel caching hierarchies should incorporate consideration of the location of the component caches and the properties of their arriving reference streams. The aggregation-disaggregation-filtering (ADF) model indicates that aggregation of request streams decreases the entropy of the stream that is offered to the next-level cache, providing an opportunity for higher hit ratios. Distinct progress can be made in understanding and engineering the Web system as a whole by the understanding that stream-based analysis provides.