Fig. 1

XML snippet containing patient stabilometric data. The element <stabilometry>, the name of reference domain, represents the root of the document. Then, it appears the element <exploration>, common to any domain. Afterwards, some general data are included such as ID, exploration date, patient name, age, and so on. Finally, there are elements for each test (e.g. <rws>, <uni>) and feature measured (e.g. <directionalControl>), including the recorded time series (<stab-TS>), containing the number of timestamps (<timestamps>) and values (<value>) for each timestamp (<timestamp>)