Software Design Doesn't Matter

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Software Design Doesn’t Matter iPadDevCamp 2 Chicago 2010

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Whatcha talkin bout Willis?

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Software Design Doesn’t Matter

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Software design

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Software design Data structures (red-black tree)

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Software design Algorithms

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Software design • Data models • Design patterns • Language choice, library choice • Anything related to “code smells” • Nearly everything on TheDailyWTF

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What matters?

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What matters? TripLog 1040

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What matters? TripLog 1040 Trip Cubby

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What matters? • Running software • That meets its users’ needs • And delights them

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What matters?

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What matters? Monkey Preschool Lunchbox

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Delight

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Delight • Match the user’s mental model • Metaphors • Easy to approach • Encourages exploration

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Delight

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Delight • Efﬁcient workﬂow • Ignore number of taps • Just don’t make me think!

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Delight

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Delight

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Delight Apple does an amazing job producing software that is fun to interact with, but from a usability perspective much of it is atrocious... mired in confusing interfaces requiring a high number of clicks to achieve any goal...” RJ Owen “

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Delight Failing on the iPhone is more enjoyable than succeeding on a Blackberry. RJ Owen

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Software design matters

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Software design matters Case study: NetNewsWire ...when it improves the user’s experience

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Software design matters ...when it gives you a competitive advantage

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The interface is the application

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SCREEN-DRIVEN DEVELOPMENT

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Now what? • Craig Hockenberry • “iPhone is not a frickin miniature laptop” (video) • http://bit.ly/bddcOy • Steve Krug • Don’t make me think • http://amzn.to/aPaJ3d • Indi Young • Mental models • http://bit.ly/asB8Tn

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Credits • Comics courtesy of http://xkcd.com/ • Red-black tree by torkristensen • http://ﬂic.kr/p/e2Qj7 • Steve Jobs Moses by Photo Giddy • http://ﬂic.kr/p/7y5Gd8 • RJ Owen quotes • “The Differences between Usability and User Experience”, http://bit.ly/bdJPFO