The top table contains various phase-out models; The lower table contains a record of the actual phase-out.
	Model Name	Standard	Optimistic	Zero	Test	AS
	Disk phased out after 3 years	10%	10%	0%	0%	0%
	4 years	50%	40%	0%	0%	10%
	5 years	100%	100%	0%	100%	100%
	CPU phased out after 3 years	10%	10%	0%	0%	0%
	4 years	50%	25%	0%	0%	5%
	5 years	100%	100%	0%	100%	100%
	Tape phased out after 3 years	10%	0%	0%	0%	0%
	4 years	50%	10%	0%	0%	0%
	5 years	100%	100%	0%	100%	100%
	Red Cell?		Cells go red if entry is invalid: Year 4 numbers must be greater or equal to Year 3 etc.
	Note: Phase-out is assumed not to be continuous. That is, exactly 3/4/5 years after the purchase date a block of hardware is removed.
	This can give rise to some boundary effects if the status date in the Tier-1 Capacity Worksheet is moved one side or other of a phase-out date.
			Quantity Phased-Out			Cumulative Totals
		Date	Disk	CPU	Tape	Disk	CPU	Tape
			[TB]	[KSI2K]	[TB]	[TB]	[KSI2K]	[TB]
		01-Apr-01	0	0	0	0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
						0	0	0
	Standard	C
	Optimistic	D
	Zero	E
	Test	F
	AS	G
		H
		I
		J
		K