March 2026
Intermediate
384 pages
6h 40m
Japanese
Content preview from UX for Business ―デジタル変革時代のビジネスデザイン手法
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症状の変化を問う
症状を探るパートの後半では「症状の変化」という問いを立てる。コンバージョン率が
低下したのは広告キャンペーンを新しくしたときからか？ そう、問いこそが重要だ。問い
を立てなけれ ば 、 気 づきはない 。
次に、たくさんのアカウントが削除されていることに気づいた。深刻な症状だ！
これは悪化なのか。はたまた改善しているのか。たまたまなのか。月曜に突然始まって
いたとしたらそれは何を意味するのか。過去にも生じていたが、長い間放置されていただ
けだとしたら。特定の手順でクリックした場合のみ生じているのだとしたら。
カスタマージャーニーは、症状（つまり、体験）の時系列の変化を視覚化できる。ステー
クホルダーとの会話にも使える。要は、診断における要素として時間を決して無 視しないこ
とだ 。
来歴を
確か める
症状を探る
症状の
か たまりを
見 つける
考えられる
原 因 は？
確認の
ための
検査
3. 診 断（ Diagnosis）
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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.