An Improved Stacking Model for Equipment Spare Parts Demand Forecasting Based on Scenario Analysis

Table 2

Analysis of equipment operation and support scenarios based on the 5W1H method.

5W1H Scenarios	Who	When	Where	Why	What	How
Spare Part Attributes	Variety	Failure Time - Year
	Number of Single Machine Installations
	Importance	Failure Time - Month
	Loss Sensitivity
	Price
Operation Scenario	Super Pilot	Average Temperature	Maximum flight Altitude	Tough/Special Tasks	Subject 1 flight hours	Flight days
	First-Grade Pilot		Average flight Altitude		Subject 2 flight hours	Flight hours
	Second-Grade Pilot	Average Humidity	Plain flight hours	General/Daily Tasks	Subject 3 flight hours	Takeoff and Landing Times
	Third-Grade Pilot	Bad flight Days	Plateau flight hours		Subject 4 flight hours	Sorties Rate
Support Scenario	Maintenance Personnel Occupancy Rate	Mean Time to Repair	Outfield Repair Rate	Repair Rate		On-Site Rate of Maintenance Equipment
						Lead Time