Operations and supply chain management
JOHN GRABARCZYK
• Six Standard deviations between the mean and nearest specification limit in a process
• Belts: Black, Black Master, Green, Yellow & White
Current Process
• Through time-reduction, more engines should be placed in an RFI status than before
• Business Objectives
• Time for parts to arrive also needs to be reduced to allow for proper
maintenance to occur• Customer needs and Feedback
Current Process
CTQs
Descriptive statistics of The Proposed Process
Forecasted Inventory/Pull System Accept/ Inspection Work in Process/WC Test Cell Run Total Maint/ Days
minimum 2 22 2 26
maximum 3 25 3 30
confidence interval 95.% lower 2.22 22.67 2.19 27.37
confidence interval 95.% upper 2.58 23.53 2.54 28.36
coefficient of variation (CV) 20.76% 5.25% 20.71% 4.96%
1st quartile 2.00 22.00 2.00 27.00
Internal Processes Influencing CTQs
Internal processes influencing CTQs
• Determine the Basic Requirement of the Customer• Identify the First level of Requirements of
Customers
• Identify the Customer’s Second Tier of
Requirements
• Bring to an end when the Quantifiable
Requirements Reaches the limit
• Confirm Final Requirements with the Customers
• How will success be measured in the future?