Dr. Susan Weinschenk explained how the User-Centered Design or User Experience matters in any software applications or websites that are meant to meet the business goals and she gives an overview of the return on investment, or ROI, of doing UX work.
You can download the PDF poster of “The ROI of User Experience” from Human Factors International.
Here is an another good presentation from EffectiveUI.com
UX matters a lot and gives a huge difference in terms of its easy to use, reaching expectations, and meeting the business goals.