Analytical processing on XML repositories is usually enabled by designing
complex data transformations that shred the documents into a common data
warehousing schema. This can be very time-consuming and costly, especially if
the underlying XML data has a lot of variety in structure, and only a subset of
attributes constitutes meaningful dimensions and facts. Today, there is no tool
to explore an XML data set, discover interesting attributes, dimensions and
facts, and rapidly prototype an OLAP solution.