Although interesting, these solutions require the use of mobile devices equipped with RFID readers, which are expensive and not so common. Moreover, the solution in [13] also needs the installation and maintenance of specific RFID infrastructures for users’ tracking. In 2007, another system described by [14] aimed to customize visitors experience in museum using software capable of learning their interests based on the answers to a questionnaire that they compile before the visit. Similarly to the Smart Museum, one of the main flaws of this system is the need to stop the visitors and force them into doing something that probably s/he would not want to do.