CIMA Managing Performance (E2) Practice Exam 2026 – All-in-One Guide to Master Your Certification!

First-pass yield measures the proportion of units that pass quality checks on the first attempt, without needing any rework. It is calculated as the number of units that exit the process after the first pass divided by the total number of units that entered the process. A high FPY shows the process is effectively producing good quality units without rework, while a low FPY signals more defects requiring rework and higher costs. This is different from defects-per-million, which counts defects rather than whether a unit passed first time; it also isn’t about production stoppages or inventory levels, which are separate performance measures.