This chapter reports on a Design Science Research project that develops a domain-specific modeling method for the explicit design of digital nudges within user experience (UX) choice architectures, in relation to product-service feature models that motivate those choices. Digital nudges are elements of user experience acting as stimulants, choices, or obstacles for certain interaction steps on digital interfaces. This modeling method is intended to help businesses plan user choices and externalize UX design decisions involving them, for subsequent analysis. We refer to this as a “semantic digital nudging” approach due to the explicit relationships that are established between UX patterns and product-service features that motivate the nudges. Furthermore, we rely on the ADOxx-to-RDF generation service to produce knowledge graphs that essentially facilitate externalization to knowledge-based systems and further semantic processing of the diagrammatic designs.