John Reynolds recently wrote about User Experience Design as the essential BPM skill, wherein he quotes Nathaniel Palmer:
They really need to look at BPM through the lens of user experience.? So it is not just necessary to have BPM experts or other process design experts; they also need business functionality and either user experience experts or those that have some keen knowledge of what the user experience needs to be. That way they can drive how the BPM-built application should behave.
While I don't think we can expect BPM customers to employ their own user experience and UI/UX designers in-house for BPM projects, I do think that a focus on UI/UX can have great benefit to BPM initiatives.