{"id":"ops-oee-three-factors-biggest-loss","audience":"managers","category":"operations-work","track":"operations","technique":"verification","level":"advanced","title":"Calculate availability, performance, quality and OEE for a shift","free":false,"task":"Write a prompt for plain text with exactly five lines: \"Availability:\", \"Performance:\", \"Quality:\", \"OEE:\" and \"Biggest loss:\". Show each division with the numbers, as percentages with one decimal. OEE is the three percentages multiplied. The last line names the factor with the lowest percentage and nothing more. Under 100 words.","materialLabel":"Your material (attached to your prompt automatically)","material":"SHIFT REPORT - Packaging Line 4, Tuesday day shift\n\nPlanned production time: 480 minutes\nDowntime: 60 minutes (20 min scheduled changeover, 25 min jam, 15 min waiting for material). All downtime counts against availability.\nRun time: 420 minutes\nIdeal rate: 50 units per minute\nTotal units produced: 18,900\nUnits rejected at final inspection: 378\nGood units: 18,522\n\nDefinitions:\nAvailability = run time / planned production time\nPerformance = total units produced / (run time x ideal rate)\nQuality = good units / total units produced\nOEE = availability x performance x quality\n\nThe shift lead says the jam was \"the main problem today.\"\nDecisions about improvement projects are made by the plant manager.","rules":[{"type":"plainText"},{"type":"maxWords","max":100}],"promptHints":[{"label":"Quotes the five labels","patterns":["availability:","performance:","quality:","oee:","biggest loss:"]},{"label":"Shows each division","patterns":["show","division","x 50"]},{"label":"Defines OEE","patterns":["multiplied","oee"]},{"label":"Defines the last line","patterns":["lowest","one word"]},{"label":"Asks for plain text","patterns":["plain","no bold","no markdown","no formatting","no headings"]}],"mistakes":[{"title":"Skipping the denominator","why":"The AI gives performance as a percent with no working.","fix":"Say: \"Show the denominator: run time x ideal rate.\"","checks":["r1"]},{"title":"Naming the jam as the biggest loss","why":"The AI follows the shift lead's remark.","fix":"Say: \"Name the factor with the lowest percentage, one word.\"","checks":["r2"]},{"title":"Wrong lines","why":"The AI writes a narrative.","fix":"Quote the five labels in order.","checks":["r0"]},{"title":"Getting markdown back","why":"AI adds bold, headings and bullets by default, which show up as stray symbols where this is pasted.","fix":"Say \"plain text, no bold, no headings, no asterisks\".","checks":["plainText"]},{"title":"Trusting the AI to count words","why":"AI is bad at counting and usually runs long, so a vague \"keep it short\" lands over the limit.","fix":"Cap each part instead of the total, for example \"each line under 15 words\".","checks":["maxWords"]}],"hint":"Give each formula, ask for the numbers in every line and say what the last line holds.","mission":"Calculate the shift's OEE and find its biggest loss.","musts":["Show each division","Percentages to one decimal","OEE multiplies the three"],"rubricLabels":["There are five lines starting Availability:, Performance:, Quality:, OEE: and Biggest loss: in that order","Availability shows 420 / 480 = 87.5%, Performance shows 18,900 / (420 x 50) = 18,900 / 21,000 = 90.0% and Quality shows 18,522 / 18,900 = 98.0%","OEE shows 87.5% x 90.0% x 98.0% = 77.2% (77.2 or 77.1 accepted from rounding) and Biggest loss names availability as the lowest factor"]}