January 2025
Intermediate to advanced
188 pages
4h 13m
Japanese
Content preview from UXデザインの法則 第2版 ―最高のプロダクトとサービスを支える心理学
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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.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.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.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.
ヒックの法則は、ストリーミングサービス上での作品選びにも見られる。改善前
の
Netix
では、番組や映画を選ぶのに平均
18
分もかかっていた。目の前にある選
択肢の多さに優柔不断になり、腰砕けになってしまうのだ。そこで
Netix
は、「ト
レンド」「
Netix
で人気の作品」など、「社会的証明」を利用したリコメンド機能を
導入することで選択肢に優劣をつけた
［図 4-6］
。
図4-6 社会的証明を利用したNetflixの「トレンド」「Netflixで人気の作品」セクション。
出典：Netflix、2023年
事例で見てきたように、選択肢の数は、意思決定にかかる時間に決定的な影響を
及ぼす。ユーザーが求める情報を見つけられるようにしたいなら、特に重要になっ
てくる。項目が多すぎたり、さらにそれらの差が曖昧であったりすると、過大な認
知負荷がかかるだろう。逆に選択肢が少なすぎれば、逆に選択肢が少なすぎても、
どの項目が探している情報に一番近いのかを識別するのはなおさら難しくなる。情
報設計のなされ方に対するユーザーの期待を見極める有効な手法の1つ に 、「 カード
ソート」がある。情報設計の分野で使われる便利な手法で、メンタルモデルに従っ
た項目整理の仕方を見つけるのに最適だ。やり方は簡単で、ただ参加者に、複数の
トピックを自分にとって意味のあるグループに整理してもらうだけだ
［図4-7］
。
カードソート
テクニック
072
CHAPTER 4
手順は簡単だ。カードソートの手法にはいくつかの種類があるものの（決められ
たカテゴリ ...
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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.