Kapitel 5 Introduction to Natural User Interfaces

• present info in a way that is very easy to grasp -> needs to be in format people are good at so that it doesn’t feel like work

• well designed tool -> don’t think about tool -> remove unnessasary options / info

• “without meddling with anything else." -> in HCI: system itself (e.g. updating / syncing / checking connection / …)

  
  

• People solve more tasks with computers, due to

  • Lowering entry barriers

  • Availability of technologies

  • Recognition instead of memory (icon instead of comandline)

  • Reduced costs and expertise

• NUI is a further evolutionary step -> everyone wants more functionalities -> everything becomes more complex

  • Potential niches (e.g. ATM)

  • Dominant technology of the future (Dektop 2.0)

-> to make shift we need (limiting factor -> no standards like in GUI):

• understanding which input modalities are good

• use more natural input modalities

• natural = (learnability, error tolerance, self discriptiveness, conformity with user expectation, controllability, suitability for task, user engagement) -> intuitive

  -> but no real distingishing between natural / supernatural

(fr hier bin ich bissl lost was er will)

• Buffering in order to quickly react to content interactions

• Provide basic interactions with all content

• Give all objects an inertia (trägheit)

• Do not use time-based gestures for content

• Allow direct interactions

• Offer a familiar environment at the beginning

• Allow the exploration of interactions

• Use consistent transitions which take the technical possibilities into account

• Change states only after user interaction

• Do not try to build something "new and innovative"

• Show a sign of life during inactivity

• Make the sign of life free of distraction

• Consider specific functionality for experts

• Help the novice to become an expert

• Constantly offer new experiences and discoveries

• Derive interactions from individual usage patterns

• Avoid explicit instructions & tutorials

-> consistency -> conformaty with user expectation (internal / external)

• Perception

• Cognition

• Physical Ergonomics