Test prototype interactions

Run the prototype test for the checkout flow with the PM and two engineers on Friday. Walk through the key success path and three critical edge cases, record the session, and capture where interactions break or feel off. Deliver a short bug list and a confidence score for each tested interaction by end of day Friday.

Before testing, make it easy to judge success: surface the expected micro-interaction timings, list the three gestures that matter, and flag any transitions that are intentionally approximate versus those that must match production exactly so testers know what to scrutinize.

During a playthrough the prototype stuttered when moving between steps in the checkout flow and the engineers are worried the timing won't match production. The PM will push for a quick go/no-go and I don't know if the issue is the prototype's frame rate, an overly complex animation, or a route-change in the real app. Should I record the interaction to show developers, simplify the animation timing in the prototype, or run the same steps on a device to isolate whether it's the prototype or the design? What's the fastest way to give Rahul a confident recommendation?

Across releases our prototype tests consistently turn into long debugging sessions on micro-interactions, draining engineering time and delaying sign-off. I want a routine that preserves fidelity where it matters but stops wasting cycles on polish that will change in build. Which criteria should I use to decide which interactions need pixel-accurate testing, and what lightweight testing ritual will keep tests under 45 minutes while surfacing real blockers?