It is good to follow principled design. This is making a decision based on some kind of collective wisdom about design rather than personal preference. Tangible user interfaces can be designed using complex sensor based data collection, conductive fabrics, mechanical devices and physical computing. Many installations of tangible interaction use an interactive space that uses sensors to track users behaviors and can also integrate tangible object in the space as well. Movements of the human body can provide direct input into interactive technologies. Our hand motion or even where our eyes look can be recorded motion data that can be can used to make physical object more interactive. Application areas with this technology could be in learning and education, domestic appliances, games, interactive music installations or instruments, museum installations, tools to support planning and decision making and health and fitness gyms. The four major design principles this article mentions are, tangibility and materiality, physical embodiment of data, bodily interaction and embeddedness in real spaces and contexts. This article also gave some really good questions to ask yourself when designing for tangible interaction. There where roughly 30 questions but out of those some that stood out to me as important where: Do people and objects meet and invite into interaction? How can the human body relate with the space? Can you communicate through your body movement? Are actions publicly available? Can you hand over control anytime and fluidly share an activity? These are all really important types of questions to ask yourself in order to make a successful design in tangible interaction.
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