Multi-field relations in designing for short-range RFID
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- Nordby, K. Pers Ubiquit Comput (2011) 15: 175. doi:10.1007/s00779-010-0296-6
Multi-field inputs are techniques driven by multiple short-range RFID-enabled artifacts like RFID-tags and RFID-tag readers. The technology is useful for designers so as to enable the construction of advanced interaction through the physical world. To take advantage of such opportunities, it is important to understand the technology in terms of what interactions it might offer designers. I address this issue by unwrapping and exposing elements that can be used to conceptualize multi-field interactions. This is done by way of a design driven inquiry in which design and research methods are used to investigate short-range RFID technology. My approach is informed by activity theory which I use to analyze RFID technology from a design perspective. The study presents multi-field relations as a conceptual framework that can be used to describe and generate multi-field inputs. Four types of multi-field relations are discussed: one-way, two-way, sequence and multiple relations. These are described and analyzed in context of a set of multi-field input examples. The multi-field relations expose elements that can be used to construct interactions. This is important for interaction designers, since new interactions presents designers with opportunities for making entirely new types of interfaces that can lead to interesting and surprising experiences.