Measuring a user experience can be intimidating at first, but it's an essential part of determining whether your work is moving in the right direction (and by how much). UX Master Certified Dr. John Pagonis shares his experiences from working with other organizations on measuring UX improvements and interpreting quantitative data.
Learn more about John Pagonis:
NN/g Resources about Usability and UX Metrics:
NN/g Articles about Microsoft's Desirability Toolkit and Adjectives List
Jeff Sauro, PhD on UX-Lite, UMUX-Lite, SUS, SEQ
(an aside: his website, MeasuringU.com, is an excellent resource)