Chapter 14 Datamodel description

Author(s): Nigel Hambly, Martin Altmann, Frédéric Arenou, Marc Audard, Coryn Bailer-Jones, Jorgo Bakker, Ulrich Bastian, Mathias Beck, Luca Bianchi, Deborah Busonero, Francesca De Angeli, Ronald Drimmel, Javier Duran, Krzysztof Findeisen, Gonzalo Gracia-Abril, Jose Hernandez, David Hobbs, Berry Holl, Alexander Hutton, Anne Jean-Antoine-Piccolo, Emmanuel Joliet, Lennart Lindegren, Xavier Luri, Paola Maria Marrese, Silvia Marinoni, Daniel Michalik, Alcione Mora, Elena Pancino, Jordi Portell, Dimitri Pourbaix, Lorenzo Rimoldini, Paola Sartoretti, Hassan Siddiqui, Kester Smith, Rosanna Sordo, Enrique Utrilla Molina, Stelios Voutsinas