1. Designing and Evaluating Supple (?) Interfaces Alistair Sutcliffe Manchester Business School University of Manchester Manchester M60 1QD UK CHI07 Supple UIs Workshop

2. Supple & Engaging ? Some users hated it Some adapted and loved it …once they figured out how to use it

3. Judgement - Decision making Process Users’ background Knowledge/ training Culture Context & task Preference Intentions Behaviour Criteria usability content aesthetics reputation customisation adaptation engagement Criticality of decision Strategies Assessing UI quality Quick plug for Monday session 4 Empirical studies Hartmann, Sutcliffe & DeAngeli

4. Supple by customisation/adaptation Pliant UIs allow us to customise and configure interaction - upsides- sense of ownership, better fit for interaction, meets user requirements - downsides- effort of customisation, more complexity Pliant UIs adapt to us (adaptive intelligent UIs) - upsides- the UI is pliant by anticipation, save us effort, meets our expectations - downsides- very difficult to get adaptive UIs right, cost of error, become the opposite of supple, obstructive Uis

5. Supple by immersion and engagement The UI seduces us to become pliant by - immersion ego centric, character based interaction i.e. avatar presences, virtual worlds - by computer as social actor for engagement, e.g. chatterbots, limited dialogue capabilities but people really relate to avatars Engagement by surprise and curiosity - unexpected interaction seduces us, e.g. technological and culture probes (Gaver, Sengers and others) - upsides: stimulates curiosity, excitement, +ve affect - downsides: does the effect last, is it just design ephemeroptera ?

6. So what’s the debate ? Understanding suppleness and experience at a deep level Where design genres are likely to succeed or not (cost- benefit analysis) The psychology of suppleness - ego character based interaction- affective but also mimicking human discourse - oddity, surprise and curiosity- affective and arousing contexts for interaction - changing relationship between users and software, end user development.. you configure interactive services to your own needs