XQuery midflight: emerging database-oriented paradigms and a classification of research advances

XQuery processing is one of the prime research topics of the database community. At the same time, XQuery research is still in a "pre-paradigmatic" stage, where the conventional symptoms of the stage are observed: It is hard to piece together point efforts into a big picture. Similarities and interplay opportunities between parallel efforts are "lost in the translation" across the different paradigms. The goal of this tutorial is to federate the plethora of works, and categorize existing work and future topics along a few reference paradigms that fuse existing results around a reference architecture.