February 2015
Beginner to intermediate
416 pages
7h 31m
Japanese
Content preview from モバイルデザインパターン 第2版 ―ユーザーインタフェースのためのパターン集
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9章フィードバックとアフォーダンス
![[fig0900]](/api/v2/epubs/urn:orm:book:9784873117034/files/images/ch09-fig0900.png)
- フィードバックのパターン
- Error Message、Confirmation、System Status
- アフォーダンスのパターン
- Tap、Swipe/Flick、Drag
9.1 フィードバックのパターン
User Experience Professionals Associationは「Principles for Usable Design」（http://www.usabilitybok.org/principles-for-usable-design）の中で、正しくデザインされたユーザーインタフェースは適切で明確なフィードバックを提供するべきとしています。そうすれば、ユーザーは自分が行ったアクションの結果を理解でき、システム内で行われている処理についてもわかると述べられています。古い映画のキャッチコピー†1を借りるなら、これは「フィードバックとは決して聞き返させないこと」とでも言い換えられるでしょう。
[†1] 訳注：蛇足ですが、『ある愛の詩』での「愛とは決して後悔しないこと」を指すと思われます。
フィードバックにはさまざまな種類があります。シンプルなプログレスインジケーターや確認のメッセージだけでなく、より高度なアニメーションや表示効果も考えられます。ここでは、モバイル向けのフィードバックでのパターンについて紹介してゆきます。
9.1.1 Error Message（エラーメッセージ）
エラーメッセージにはプログラムのコードを含めず、通常の言葉を使って問題を適切に表現するべきです。そして、建設的な解決策を示すべきです。SoundwaveやPandoraのように、画面内でエラーメッセージをよく目立つように表示するというのがベストプラクティスです（図9-1）。一方、Square ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.