IT-Director.com: QlikTech raises questions

IT-Director.com: QlikTech raises questions: "The product works by parsing input data (which may be from multiple sources) and extracting the metadata that describes the relationships between the various data elements to be analysed. This is stored in its own file. The data itself is stored in an associative database in memory. This strips out the redundant data from the original data source and is highly compressed, resulting in a memory requirement that is a third to a quarter of the size of the original data source."