Cocomo Cost Estimation

Transcript

1. Cost estimation -By Surabhi Vatsa
2. Phase Lines of Code Mock - Up 100 Sprint Phase 1 700 Sprint Phase 2 (Expected) 400 Total 1,200 Lines of Code Estimate
3. 1.2 KSLOC / KDLOC
4. Intermediate COCOMO For Organic Model, = . ∗ ( )^ . person-months
6. Product of Effort Multipliers 1.699
7. Using intermediate COCOMO Organic Project => a = 3.2 , b = 1.05 Estimated Effort = a (KDLOC)^b = 3.2*(1.2)^1.05 = 3.87 Person Months Now Estimated Effort (New) = Estimated Effort * ( Effort Adjustment Factor) = 3.87*1.699 = 6.58 Person Months
8. Using intermediate COCOMO Precedentedness : 4 Development Flexibility : 1 Architecture / Risk Resolution : 5 Team Cohesion : 3 Process Maturity : 4 Therefore B = 1.01 + 17/100 = 1.18 Time_Devlopment = 3 * PM ^ ( 0.33 + 0.2(1.18- 1.01)) = 3*6.5^(0.364)=5.8 Months
9. Phase 1: Expected Time by Management
10. Phase 1: Actual Time given by Team
11. Expected vs Actual Time
12. Comparison between actual and predicted PM*30 days = 197.4 Actual Time Spent = Σ Hours Spent By Members = 175 Δ Hours = 197-175 = 22hrs (~off by One day )
13. Thank You Any Questions?