Communications of the Association for Information Systems


User experience (UX) research focuses in large part on how users subjectively evaluate digital products, services, and software. In the mobile computing domain, however, UX researchers currently face limitations in the multifaceted measures that they can apply to assess specific mobile device and software combinations. Currently available measures can produce only single-score usability measures (e.g., the well-known system usability scale and its variants) or cover only a part of the mobile device-software user experience (e.g., the recently developed mobile application usability instrument). This paper adds two multifaceted survey instruments to the toolkit of UX researchers and practitioners: the mobile user experience (MUX) instrument, a 15-item instrument tailored toward scholarly research, and the short-form sMUX, a six-item instrument intended for use in practical settings or other situations where survey length is constrained.