【正文】 s Yield First Pass Yield Yes 90% No 10% Yes 80% No 20% Queue SCOPE Generic First Pass Yield Example PROPRIETARY 169。s pleted first time through according to specs x 100 Total AIP39。 1988 Thomas Group, Inc. All Rights Reserved. 34 Modeled Cycle Time ? Applies to long cycle time, low transaction processes, for example: ?Research and development ?Design/Development ?Contracting continued... PROPRIETARY 169。 onhold portion processed = 300 ? What is the overall order entry cycle time? ? What is the onhold cycle time? ? What is the nonhold order cycle time? PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 30 All data for a one month time period ? On the average, a board requires days to progress through the waiting queues and processes and to exit from the line. Dynamic Cycle Time Example Beginning board inventory 4600 Ending board inventory 3600 Boards out to stock 31500 = .13 (30 days/month) = days Average Work in Process Process Speed = (Beg. Inv. + End. Inv.) / 2 OUTS dCT = = = (4600 + 3600) 2 4100 31500 Month 31500 PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 26 Or increase the output rate The black ball exits in one second. OneFifth Second Actuator Understanding Dynamic Cycle Time PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 22 Imagine: Clear Tube Shutter opens once each second OneSecond Actuator Understanding Dynamic Cycle Time PROPRIETARY 169。s ?Number at specific time in measurement period ?Average of the number at beginning and end of measurement period ?Average numbers from samples during the measurement period ? Processing Speed ?(AIP39。s (Actions in Process) using historical pletion rates (Processing Speed) ? Processing Speed is a function of barriers and backlog ? AIP39。 1988 Thomas Group, Inc. All Rights Reserved. 17 A product test that starts on June 12 and concludes on July 19, has a static cycle time of 37 days. Start June 12 Stop July 19 Static Cycle Time = 37 Days Population of one Static Cycle Time continued... PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 13 All three metrics are required for key processes to provide balanced improvement! TCT Basic: Critical Process Measures ? Cycle Time ?Static ?Dynamic ?Modeled ? FirstPass Yield (FPY) ? Cost/Productivity PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 10 Developing ―New‖ Metrics 4. Link all measurements to the critical processes and strategies of the business 5. Determine the key measures of the critical business processes and use them to drive improvement 6. Eliminate the old measurements PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 7 Process Drivers ? All business processes have ―Drivers‖ that link to ―Results‖ ? Driver measurements are leading indicators of Results ? Improving a Driver accelerates improvement of Results continued... PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 3 Which Measurements Are Really Needed? ? Measurements that are: ? Limited in number ? Timely ? Difficult to manipulate ? Reflect the time state of the processes ? Understood by everyone ? Used to drive change PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 2 ? Measurements that reflect meaningful benefits to customers, shareholders and employees ?Responsiveness to customer needs ?Results acceleration ?Resource effectiveness ? Measurements with clear linkage between: ? Shortterm performance and strategic objectives ? Drivers and results ? Functions / customers / suppliers / processes ? Specific actions required and desired results 3 R’s ? Which Measurements Are Really Needed? continued... PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 6 Measurement Manipulation Example OnTime Delivery Reported Measurement Criteria Performance Percent of line items ontime to latest weekly schedule, within a sixday window 94% Ontime to oneday window 88% Ontime to latest monthly schedule 82% Ontime to latest customer schedule 58% Ontime for three product kit 20% Ontime without spec waivers 14% PROPRIETARY 169。 may be different from those used today 2. Make these measurements hierarchical, nonconflicting and aligned to the strategic direction 3. Separate measurements into Drivers and Results continued... PROPRIETARY 169。 1988 Thomas Group, Inc. All Rights Reserved. 12