【文章內(nèi)容簡介】 Step 2: Exploit Constraint Step 3: Subordinate nonconstraints Step 4: Elevate a: Run All of the Time b: Add Capacity Step 5: Restudy Step 0: Establish Baseline ? ? ? ? 16 Goal of this step is to determine: “ Where are we today?” Define the scope of the system Determine the measurement system to use *if you know it at this point Complete the Capacity Analysis Worksheet – Logical Process to Identify any Constraint – Estimates the Capacity at Each Operation – Note Additional Constraints ? Market ? Policy 169。 1994 General Motors Corporation. All rights reserved. 169。 1994 General Motors Corporation. All rights reserved. Capacity Analysis Tool ? ? Requires a few simple inputs – Capacity Requirements – Scrap and Rework – Downtime Scheduled and Unscheduled – Operation Cycle Times Output includes: – Estimation of Total Capacity of Operation – Total Number of Shifts Required per Week to Produce Requirements – Overall Equipment Effectiveness Measurement – Flag for Constraint Operations 169。 1994 General Motors Corporation. All rights reserved. Step 0: Re: Completion of the Capacity Analysis Worksheet ? Note to SDEs: – Show an example of the Capacity Analysis Worksheet – Work through the sheet with the supplier with as much actual data as possible – Accuracy of information is important, as this will form the basis for the remainder of the discussion – Brainstorming for improvements can be structured to follow each one of the inputs to the capacity analysis 169。 1994 General Motors Corporation. All rights reserved. 5 Step Improvement Process Step 0: Establish Baseline Step 1: Identify Constraint/Bottleneck Step 2: Exploit Constraint Step 3: Subordinate nonconstraints Step 4: Elevate a: Run All of the Time b: Add Capacity Step 5: Restudy Net Capability per day Shifts Req’d per week 414 467 169。 1994 General Motors Corporation. All rights reserved. Step 1: Identify the Constraint/Bottleneck ? ? If shifts/ week required shifts available, then a constraint exists ? Note: This will be shown by a “ ” on the Capacity Spreadsheet If no constraint exists: – examine the operations for the greatest number of shifts required, and the lowest capability per day. – The operation with the greatest number of shifts closest to the requirement is the bottleneck. – Note that constraints may not be immediately visible on the capacity spreadsheet due to interactions between operations (buffers) Shifts available = 15 Requirement/day=450 169。 1994 General Motors Corporation. All rights reserved. 5 Step Improvement Process Step 0: Establish Baseline Step 1: Identify Constraint/Bottleneck Step 2: Exploit Constraint Step 3: Subordinate nonconstraints Step 4: Elevate a: Run All of the Time b: Add Capacity Step 5: Restudy 169。 1994 General Motors Corporation. All rights reserved. Step 2: Exploit Constraint ? ? ? Run con