缩写说明 Metrics: HR Dept.: L.W.D.C: Lost Work Day Case Rate Quality Dept.: COQ: Cost of Quality WIR: Wiring Incident Report FTQ: First Time Quality WFCC: Worldwide Formal Customer Complaint PPM： Pieces per Million RRPPM: Return & Reject Piece Per Million IPTV: Incident Per Thousand Vehicles Engineering Dept.: C/O: Changeover time C/T: Cycle Time PDT: Planned Downtime LT: Lost Time DT: Downtime OA: Operational Availability OE: Operational Effectiveness PC&L Dept.: OEM： On time Shipments IPM: Inciden
