Main variables of the Survey on technological innovation at companies in Catalonia for the years 1994, 1996 and 1998. Complies the basic results of the surveys on technological innovation produced by the INE on a biennial basis. Idescat, on the basis of INE statistics archives, makes a specific exploitation in order to provide an extension of the results to the territory of Catalonia.
From 2000 a new methodology has been applied that was inspired by the Manual by Frascati and the survey is made annually. This change of methodology makes it hard to compare time periods for this data and that available from the year 2002.