Simone, CarlaSarini, Marcello2017-04-152017-04-152001978-0-306-48019-5The overview of a set of field studies highlights how different are the scenarios in which classification schemes (CS) play a role in cooperation. In al l cases, adaptability is claimed as a fundemental requirement for their usability and effective usage. What adaptability means for CS is not an easy question. The paper tries to artivulate this requierement and denve implications on the design of a suppportive technology.enText10.1007/0-306-48019-2