From a press release, or actually a study:

The recent publication of a new benchmark report by Aberdeen Group, a Harte-Hanks Company Application Performance Management: The Lifecycle Approach Brings IT and Business Together, further signals the increasing need for real end user experience solutions. Aberdeen’s latest findings show that 50 percent of revenue loss is a result of poor Application Performance. In addition, the enterprises surveyed by Aberdeen clearly ranked the ability to identify end user problems as the top priority for any Application Performance Management initiative.

…

“Best-in-Class organizations are taking an additional critical step and are measuring application performance not only from the perspective of their data center components, but also from the end user perspective. These organizations are ensuring that improvements in application availability, response times and usability translate into improved employee satisfaction and productivity, and ultimately, improved customer satisfaction, mitigation of lost revenue opportunities, and avoid damages to brand image,” said Bojan Simic, research analyst at Aberdeen.

This goes under — duh.

Of course poor user experience can result from a website, web application, or software application that’s slow, has incoherent error messages or just plain breaks. Users don’t know the difference between what’s a bug and what’s not, or why the application is performing slowly.

So, repeat after me:

The first rule of user experience is that the application should actually work.

I wonder how much they are charging for that report. I need to start writing white papers.