The document presents the Constructive Cost Model (COCOMO), an algorithm developed for software cost estimation by Barry Boehm. It outlines three stages of COCOMO: Basic, Intermediate, and Detailed models, detailing their equations and factors influencing estimation. Additionally, it discusses the division of software into modules for applying COCOMO, along with the six phases of the Detailed COCOMO process.

1. cocomo
Presentation
BY- SIDHDARTH KUSHWAHA
ROLLNO-21201010056

2. The Constructive Cost Model (COCOMO) is an algorithmic software cost
estimation model developed by Barry Boehm.
CoCoMo
Constructive Cost Model

3. Software cost estimation should be done
through three stages:
BASIC
COCOMO
MODEL
INTERMEDIATE
COCOMO
MODEL
DETAILED
COCOMO
MODEL

4. 4
Basic COCOMO MODEL
• KLOC= Kilo Lines of Code
• a1, a2, b1, b2 are constants for each group of software products
• PM= person per month
Effort(E)= a*(KLOC)b PM
Development Time(D)= c*(effort)d Months
People Required= E/D

5. TABLE FOR BASIC
COCOMO MODEL

6. INTERMEDIATE COCOMO
MODEL
SOME CONSTANTS CALCULATED ACCORDING TO THE VARIOUS SOFTWARE SYSTEM
IT USES 15 COST DRIVERS
EXTENSION OF BASIC COCOMO MODEL

7. E= (ai (KLoC) b
i ) *EAF
EAF( Effort Adjustment Factor)
Value calculated from 15 cost drivers
INTERMEDIATE COCOMO
EQUATION
Sofware projects a
b
3.2 1.05
3.0 1.12
2.8 1.20
Organic
Semi detached
Embedded

8. The whole software is divided into different modules and then we
apply COCOMO in different modules for estimation
The six phases of detiled COCOMO are:
Detailed COCOMO
MODEL
Planning and requirements
Integration and test
Cost constructive model.
Detailed design.
System design
Module code and test

9. Thank You