One of the hardest things about design is keeping track of the terminology. There are many words to learn, and definitions frequently overlap. But don’t think for a moment that any two terms mean the exact same thing. Distinctions abound. Abbreviations matter.
So it is with user experience and customer experience design, or UX vs. CX. The two disciplines are so closely related, their differences so murky, that they are sometimes used interchangeably.
http://fastcompany.com/90442611/branding-is-dead-cx-design-is-king/