Speculative design: crafting the speculation

The article positions the author's work as speculative design but-like the term design fictions-is open to several interpretations. How is the fictional character of such work conceptualised and produced? What kinds of speculation are involved? The article considers the value of one particular approach and argues that speculative design serves two distinct purposes: first, to enable us to think about the future; second, to critique current practice. Methods are described through case studies, either of the author's own projects or projects completed by graduates of the design interactions course at the Royal College of Art. A key concept is the 'perceptual bridge'-the means by which designs engage their audience. The article argues that a vital factor in the success of a Speculative Design proposal is the careful management of the speculation, specifically what informs the use of technology, aesthetics, behaviour, interaction and function of the designed artefact.