What is the measure of a software’s success? Shareholders would probably answer: profits, the lead over the competition, test scores. But these are all secondary effects. Their common condition is that the users of the product are convinced by its design and handling. The user experience (UX) must be right. You can find out exactly what is meant by this in this article.

Statistiken zur Bedeutung der User Experience (UX) für Nutzer verschiedener Medien
1 http://www.mcrinc.com/Documents/Newsletters/201110_why_web_performance_matters.pdf
2 https://www.thinkwithgoogle.com/consumer-insights/consumer-trends/mobile-site-load-time-statistics/
3 https://www.forrester.com/report/The-Six-Steps-For-Justifying-Better-UX/RES117708
4 https://think.storage.googleapis.com/docs/au-what-mobile-users-want.pdf