What is design grammar?
Design grammar can be defined as the visual language used to design, i.e., the elements, and relationships between them, that are synthesized in the Form (understood as a unified structure of parts) of an artifact.
Is user experience design capitalized?
It's rare to use sentence capitalisation for job titles on a résumé or CV, but if you do, then it's User experience. If you are talking about a matter of user experience in a sentence, such as this one, then it's lower case. Of course, you capitalise the first word of a sentence.