ServiceNow UI design (and any other software) is a part of UX design that complements it with functional interface. It is delivered in the form of:
Your ServiceNow needs UI Design to provide your end user with intuitive, mobile friendly solutions that ensure visual clarity, low user burden and brand consistency. An example can be both the standard platform interface or Service Portal, including full scale portals (e.g. ITSM) or single-process apps like appointment scheduling.
User interface design is made up of a 3-stage process that aims to create interface with a focus on look and style that users will find easy to use.
Determination of possible solutions and features as well as definition of information architecture to provide high fidelity wireframes.
Animated mockups of the solution. This stage starts with look and feel iterations to finish with the delivery of final visualization of the solution.
Testing of interface, based on a mockup prototype or a working prototype.