'''Tutorial''': XML files preparation and import

This Media:Tutorial will give you some basic information on:

• the SSDM data model structure (of the 'sample' in particular)
• the various types of data and their dependencies
• the 'UID' concept to link data

• the preliminary questions you need to ask on your data
• the xml rules
• the special keywords
• the steps to prepare data and import them
  • sample, experiment-spectra
  • fundamental data
• how to correct your data