in User Centered Design

Designing User Interfaces for Mobile, Wireless & Handheld Devices

Wireless Device Characteristics :

– Small screen sizes
– Difficult input mechanisms
– Variety of devices/ microsbrowsers/platforms /service providers
– Less Boot up time

– Restricted power supply/ battery life
– Less Memory
– Less powerful CPU
– Less Bandwidth
– Unreliable Connection

WAP Environment :

– Uses Micro Browsers to submit & request requests.
– Micro Browser uses WML & WML script interpreters.

UX Goals :

– Easy Information retrival, not browsing
– Organize data for easy access ( Card Decks, Access Keys etc.,)
– Optimise application to suit specific device models

WML Capabilities :

– Supports text & images
– Events & Tasks : do, postfield, go, prev
– User Input : input, select, option
– Card Deck info organisation
– Variables : set, refresh, onevent
– Anchor

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Designing Effective User Interfaces for Wireless Devices>

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