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[MUSIC]

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Hi, my name is Anwar.

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I'm a designer, a developer and
a teacher at Treehouse.

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In this course I'll teach you how
to apply Apple's Human Interface

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Guidelines when designing apps
intended for the iOS platform.

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Apple's human interface
guidelines have been publicly

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available since at least 1987,

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when Apple released a textbook,
aimed at creating a consistent

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interaction experience for
users of Apple and Macintosh computers.

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Long before mobile devices, and even
before the dawn of the World Wide Web,

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Apple laid out principles that sound
pretty relevant to UX designers today.

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Emphasizing that
consistency makes it easier for

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a user to learn new applications.

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And the user, not the computer,

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initiates and controls all actions.

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While Apple's devices have evolved
a bit since 1987, the principles

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behind today's Human Interface
Guidelines are really not so different.

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In this course,

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we'll examine Apple's Human Interface
Guidelines as they pertain to iOS apps.

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These guidelines allow designers to
create a consistent experience familiar

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to anyone who has interacted with an Apple
product and to design applications

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that allow users meaningful control
over their interactive journey.

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Apple has three
key iOS design themes.

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Clarity,
Deference, and Depth.

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To understand each theme,

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it's helpful to look at how iOS
design has evolved since 2007,

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the year Apple introduced the iPhone.