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

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Approach: Exploration of the Design Space

Agile development method

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User RequirementsChanging user groups

User RequirementsChanging user groups

Available Design SpaceExpanded by new TechnologiesAvailable Design SpaceExpanded by new Technologies

Establish a frameworkfor dynamic maps

Establish a frameworkfor dynamic maps

Explore promisingconcepts with usersExplore promising

concepts with users

Exploratory Design

Agile Scrum Process

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Exploratory Design

Extended Scrum Process

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Prototypes: “Dynamic Maps” for Car Navigation

Adaptive On-/Offroad-Navigation Specific requirements beyond current PNDs

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Prototypes: “Dynamic Maps” for Car Navigation

On-/Offroad-Navigation Adaptation of display configuration

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Prototypes: “Dynamic Maps” for Car Navigation

On-/Offroad-Navigation Adaptation of display configuration

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Prototypes: “Dynamic Maps” for Car Navigation

On-/Offroad-Navigation Multiple input modalities (touch, rotary selector, speech)

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Prototypes: “Dynamic Maps” for Car Navigation

On-/Offroad-Navigation Iterative Prototyping in an Agile UCD Process involving

hardware, software and UI design

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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

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Prototypes: “Dynamic Maps” for Pedestrian Navigation

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Prototypes: “Dynamic Maps” for Pedestrian Navigation

13Indoor 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

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Thank you for your attention!

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