Usability Task-Flow Funnel Simulator (2D)

Task-based usability testing scripts a group of real users through a fixed flow of screens and scores the run with a handful of standard metrics — completion rate, time-on-task, error rate, and a SUS estimate. This 2D companion runs the exact same Monte Carlo protocol as the 3D version — a batch of simulated users stepping through a chain of onboarding screens, each one drawing from a per-screen advance / backtrack / abandon probability that you control — but renders it as a flat, pannable, zoomable node diagram instead of a 3D scene, while completion rate, mean time-on-task and an illustrative SUS score update live as the batch finishes.