Prototyping: A Component for Successful Projects

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Prototyping: A Component for Successful Projects Chris Griﬃth Qualcomm, Inc. User Experience Group

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Available for iPhone h/p://bit.ly/ctSHPY Conference App Available

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What is Prototyping …incomplete versions of the soEware program being developed. A prototype typically implements only a small subset of the features of the eventual program, and the implementaHon may be completely diﬀerent from that of the eventual product. (hKp://en.wikipedia.org/wiki/SoEware_prototyping)

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Source: hKp://www.whaKoﬁx.com/blog/archives/2008/05/peace_for_pachy.php

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Short Timeframes

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Build only what you need

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Don’t be afraid to throw it out

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Types of Prototyping • Low Fidelity • Medium Fidelity • High Fidelity

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Low Fidelity • Quick to develop • Allows for exploraHons of ideas • Can be more diﬃcult to conduct user studies • Zero coding!

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Paper Prototyping Source: hKp://usereccentric.com/entries/000333.html

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Paper Prototyping

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Tools

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Resources

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Medium Fidelity • More “real” user experience • Longer design Hme • Longer development Hme • Some level of programming • “Golden Path” / Slideshow

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Medium Fidelity

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Tools

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High Fidelity • Closer to reality • Greater design requirements • More development Hme • Can serve as a reference pla_orm for other groups (Engineering, QA, MarkeHng)

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High Fidelity

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Tools

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Demos

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iPhone Tricks

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Source hKp://usability.wikimedia.org/wiki/File:Research-‐Photo-‐LabTesHng.jpg

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Prototyping PiJalls

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Fidelity Trap

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“Looks Done to me! Ship IT!”

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Prototyping: A PracOOoner's Guide

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Keys to Successful Prototyping • Short development Hme • Throw-‐away code (mostly) • Fake it (when you can)

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Q&A

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Contact me: • cgriffi[email protected] • TwiKer: @chrisgriffith • Blog: hKp://chrisgriffith.wordpress.com/