Agile Design Exploration: User Interface Concepts for Future Navigation Systems Volker Paelke, Karsten Nebe Leibniz University Hannover, University of Paderborn Germany

Motivation  Navigation becomes a commodity  PDAs, PNDs, Smartphones  Extensions: 3D display, landmarks, POIs, “intelligent routing”  More than Eye Candy ?  At the same time: limited to conventional metaphors 2

Approach: Exploration of the Design Space Agile development method 3 User Requirements Changing user groups User Requirements Changing user groups Available Design Space Expanded by new Technologies Available Design Space Expanded by new Technologies Establish a framework for dynamic maps Establish a framework for dynamic maps Explore promising concepts with users Explore promising concepts with users

Exploratory Design  Agile Scrum Process 4

Exploratory Design  Extended Scrum Process 5

Prototypes: “Dynamic Maps” for Car Navigation  Adaptive On-/Offroad-Navigation  Specific requirements beyond current PNDs 6

Prototypes: “Dynamic Maps” for Car Navigation  On-/Offroad-Navigation  Adaptation of display configuration 7

Prototypes: “Dynamic Maps” for Car Navigation  On-/Offroad-Navigation  Adaptation of display configuration 8

Prototypes: “Dynamic Maps” for Car Navigation  On-/Offroad-Navigation  Multiple input modalities (touch, rotary selector, speech) 9

Prototypes: “Dynamic Maps” for Car Navigation  On-/Offroad-Navigation  Iterative Prototyping in an Agile UCD Process involving hardware, software and UI design 10

Prototypes: “Dynamic Maps” for Car Navigation  On-/Offroad-Navigation  User tests integrated into design iterations Display adaptation well accepted Input adaptation irritating if not notified Preference for parallel input modalities 11

Prototypes: “Dynamic Maps” for Pedestrian Navigation 12

Prototypes: “Dynamic Maps” for Pedestrian Navigation 13 Indoor Outdoor  Indoor:  Preference for simple abstracted 3D visualizations with 2D guidance  Outdoor:  Preference for maps augmented with landmarks  Visualization style dependent on landmark type

Conclusions  A large opportunity exists to improve the usability of future navigation systems through “dynamic map” concepts  improving input  improving output  better functionality  adapting to users, environment and task  A user-centred process is required to develop innovations that are of actual benefit to the user  An agile design process seems to be well suited  Selected system probes were developed and tested to validate key assumptions and to inform future design decisions 14

Thank you for your attention! 15