Applications and Usability of Interactive TV Third Iberoamerican Conference, jAUTI 2014, and Third Workshop on Interactive Digital TV, Held as Part of Webmedia 2014, João Pessoa, PB, Brazil, November 18-21, 2014. Revised Selected Papers - Abásolo, María José; Kulesza, Raoni (Springer International Publishing : Imprint: Springer, 2015)