The COCOMO model is a software cost estimation model that classifies projects into three categories - organic, semi-detached, and embedded - based on team experience and project complexity. It uses effort, duration, and staffing constant values that vary for each project category to calculate the effort required to build software based on lines of code. The purpose is to help estimate effort, staffing needs, and costs for a project based on its characteristics and the constant values table provided by the COCOMO model.

1. COCOMO Model
Constructive Cost Estimation Model
Navjyotsinh Jadeja
www.edtechnology.in

2. What is COCOMO
• COCOMO Stands for Constructive Cost Estimation Model
• The Constructive Cost Model is a procedural software cost
estimation model developed by Barry W. Boehm.
• Classifies the Projects into 3 Categories
1. Organic
2. Semi Detached
3. Embedded

3. Purpose of COCOMO
• The purpose of this Model is to help the end user to make Estimate of the
Effort required to Build the software, staff and Cost estimation.
• Throughout this video we are only discussing Basic COCOMO model.
• For other variants visit further videos in the series.

4. COCOMO Project types
• Organic Projects:
• Good experience | Small Team | Less Complexity
• Semi-Detached:
• Experience + Newbies | Size = Small to Medium (Comparitively
Larger than Organic)
• Embedded:
• Experienced team | Very Large Team | Complexity High

5. Constant Values
Table 1. Basic COCOMO Model
Software
Project
ab bb cb db
organic 2.4 1.05 2.5 0.38
Semi-detached 3.0 1.12 2.5 0.35
embedded 3.6 1.20 2.5 0.32

6. Constant Values
Effort = a*(KLOC)b
Duration = c*(effort)d
Staffing = Effort/Duration

7. Constant Values
Effort = a*(LOC)b
Duration = c*(effort)d
Staffing = Effort/Duration

8. Verify your calculations using simulator

9. For More questions
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SRnU5JL7bcaQGM3ITTFqQ