This document discusses using a cognitive grammar approach to user experience (UX) design. It proposes that interfaces can be viewed as languages with underlying grammars and conceptual models. The author describes their experience applying grammatical distinctions like objects and verbs to the information architecture of a banking app. The document then discusses how UX research can be used to develop an ontology conceptualizing a domain and how prototypes can help test and refine the conceptual model through an iterative process.