The metric for the ratio of actual output to standard output, used to gauge process performance

• A. EDI
• B. Efficiency
• C. Drum schedule
• D. DRP

Answer: (B)

This metric measures how efficiently a process uses its standard output as a benchmark. It is the ratio of actual output to standard output, so it directly indicates performance against the planned target. If actual output matches the standard, efficiency is 100%. If actual is lower, efficiency falls; if higher, efficiency exceeds 100%, signaling overproduction or unusually favorable conditions. This focus on comparing what was produced to what was expected is what makes it the best measure of process performance in this context. The other choices relate to data exchange (EDI), a pacing concept from TOC (drum schedule), or distribution planning (DRP), not a direct efficiency metric.