[Dev][Excerpt] Estimate Multipliers by Project Phase.

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Phase	Effort and Size		Schedule
	Optimisitic	Pessimisitc	Optimisitic	Pessimisitc
Initial product concept	0.25	4.0	0.60	1.60
Approved product concept	0.50	2.0	0.80	1.25
Requirements specification	0.67	1.5	0.85	1.15
Product design specification	0.80	1.25	0.90	1.10
Detailed design specification	0.90	1.10	0.95	1.05

< Source : Adapted from "Cost Models for Future Software Life Cycle Processes : COCOMO 2.0" (Boehm et al. 1995) >