From implicit to touching interaction: RFID and NFC approaches

Intelligent environments need interactions capable of detecting users and providing them with good-quality contextual information. In this sense we adapt technologies identifying and locating people adjusting their requirements. However it is necessary to analyze some important features in order to compare the implicit interaction, closer to the users and more natural, in front of a new interaction form that we called ldquotouching interactionrdquo or interaction by touch. In this paper we present the adaptability of two technologies the radiofrequency identification (RFID) and the near field communication (NFC). In the first one, the interaction is more appropriate into intelligent environments but, in the second one, the same technology RFID placed into mobile phones, produces context-awareness capabilities by a single user interaction, so the benefits to adapting NFC technology are important. In addition, we propose changes of the architecture, the model, the visualization of information and the interaction.