Consider the interaction design principle $$consistency$.$ Identify part of an interface to some digital product you know about that misses an opportunity to apply this principle. Describe the omission, state how it could be remedied and explain why the omission matters in this particular case.

b$.$Consider the heuristic for heuristic evaluation $$visibility of system state$.$ Select an interface of some digital product that fails that heuristic. Describe concretely in what way it fails, suggest a concrete way in which the design could be improved to address this failure, and identify why the failure matters in this case.