The aim of this article is to display common trends and design approaches in iPhone app design - please notice that they are not necessarily optimal ones from the design or usability point of view.

本文的宗旨是阐明苹果手机应用软件设计的共同趋势和设计方法。请注意，这些共同趋势和设计方法从设计或者实用性的角度来看未必最优。

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It is an integral part of design, and it impacts the overall usability of the system.

它也是设计的组成部分，并影响整个系统的总体可用性。

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For internal design projects, think of doubling usability as cutting training budgets in half and doubling the number of transactions employees perform per hour.

对内部设计项目，可以通过对培训预算减半，增加每小时交易雇员的数量去加大可用性的投入。

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One of the great usability benefits of this design is that the iWatch could sense body position and orient the focus of the visible surface towards the user.

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The general design, usability and stability of the Zune desktop software has indeed come a long way, and we'd have no reservations about using it for all day music browsing and listening.

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But down in the detail there were complex issues surrounding which elements of a design (in the form factor, in usability, and in what was called the trade dress) were truly protected by law.

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