Support Services Cost
Support staff is modeled as a fixed overhead. aPriori estimates the budget for the support group based on the planned capacity for the factory. Support services are the fully burdened salaries and expenses for the following groups:
• Quality
• Maintenance
• Planning & Purchasing
• Engineering
• Tool Crib
Support Services Cost = Quality Support Cost + Maintenance Support Cost +
Purchasing Support Cost + Engineering Support Cost + Tool Crib Support Cost
Quality Support Cost = Quality Support Hourly Rate * Quality Support Allocation * Work Center Capacity
Quality support hourly rate (specified by the VPE variable Quality Support Hourly Rate)
Quality support allocation (specified by the VPE variable Quality Support Allocation)
Work Center Capacity = Hours per Shift * Number of Shifts * Working Days per Year
Hours per shift (specified by the VPE variable Hours Per Shift)
Number of shifts (specified by the VPE variable Number Of Shifts)
Working days per year (specified by the VPE variable Working Days Per Year)
Maintenance Support Cost = Maintenance Support Hourly Rate * Support Allocation * Work Center Footprint * (1 + Nonproduction Footprint Factor) * Annual Earned Machine Hours
Maintenance support hourly rate (specified by the VPE variable Maintenance Support Hourly Rate)
Support allocation (reciprocal of the VPE variable Maintenance Worker Coverage)
Work Center Footprint = Machine Length * Machine Width * Allowance Factor
Machine length (specified by the machine property Machine Length)
Machine width (specified by the machine property Machine Width)
Allowance factor (specified by the machine property Allowance Factor For Machine Footprint)
Nonproduction footprint factor (specified by the VPE variable Non Production Footprint Factor; 0.3 in aPriori starting point VPEs)
Annual Earned Machine Hours = Work Center Capacity * Machine Uptime Percent
Work Center Capacity = Hours per Shift * Number of Shifts * Working Days per Year
Hours per shift (specified by the VPE variable Hours Per Shift)
Number of shifts (specified by the VPE variable Number Of Shifts)
Working days per year (specified by the VPE variable Working Days Per Year)
Machine Uptime Percent (specified by the machine property Machine Uptime Percent)
Purchasing Support Cost = Purchasing Support Hourly Rate * Purchasing Support Allocation * Work Center Capacity
Purchasing support hourly rate (specified by the VPE variable Purchasing Support Hourly Rate)
Purchasing support allocation (specified by the VPE variable Purchasing Support Allocation)
Work Center Capacity = Hours per Shift * Number of Shifts * Working Days per Year
Hours per shift (specified by the VPE variable Hours Per Shift)
Number of shifts (specified by the VPE variable Number Of Shifts)
Working days per year (specified by the VPE variable Working Days Per Year)
Engineering Support Cost = Engineering Support Hourly Rate * Engineering Support Allocation * Work Center Capacity
Engineering support hourly rate (specified by the VPE variable Engineering Support Hourly Rate)
Engineering support allocation (specified by the VPE variable Engineering Support Allocation)
Work Center Capacity = Hours per Shift * Number of Shifts * Working Days per Year
Hours per shift (specified by the VPE variable Hours Per Shift)
Number of shifts (specified by the VPE variable Number Of Shifts)
Working days per year (specified by the VPE variable Working Days Per Year)
Tool Crib Support Cost = Tool Crib Support Hourly Rate * Tool Crib Support Allocation * Work Center Capacity
Tool Crib support hourly rate (specified by the VPE variable Tool Crib Support Hourly Rate)
Tool Crib support allocation (specified by the VPE variable Tool Crib Support Allocation)
Work Center Capacity = Hours per Shift * Number of Shifts * Working Days per Year
Hours per shift (specified by the VPE variable Hours Per Shift)
Number of shifts (specified by the VPE variable Number Of Shifts)
Working days per year (specified by the VPE variable Working Days Per Year)