What is COCOMO 2 estimation model?
Sophia Hammond
Updated on March 30, 2026
What is COCOMO 2 estimation model?
COCOMO-II is the revised version of the original Cocomo (Constructive Cost Model) and is developed at University of Southern California. It is the model that allows one to estimate the cost, effort and schedule when planning a new software development activity.
What is COCOMO tool?
Cocomo (Constructive Cost Model) is a regression model based on LOC, i.e number of Lines of Code. It is a procedural cost estimate model for software projects and often used as a process of reliably predicting the various parameters associated with making a project such as size, effort, cost, time and quality.
How many stages are there in Cocomo II?
To summarize, COCOMO II provides the following three-stage series of models for estimation of Application Generator, System Integration, and Infrastructure software projects: 1. The earliest phases or spiral cycles will generally involve prototyping, using the Application Composition model capabilities.
How many cost drivers are used for Cocomo II model?
COCOMO II has 17 cost drivers — you assess your project, development environment, and team to set each cost driver. The cost drivers are multiplicative factors that determine the effort required to complete your software project.
How is Cocomo 2 better than Cocomo 1?
COCOMO I is useful in the waterfall models of the software development cycle. COCOMO II is useful in non-sequential, rapid development and reuse models of software. It provides estimates pf effort and schedule. It provides estimates that represent one standard deviation around the most likely estimate.
How is EAF calculated?
Typical values for EAF range from 0.9 to 1.4. The Intermediate Cocomo formula now takes the form: E = ai (KLoC) bi (EAF) where E is the effort applied in person-months, KLoC is the estimated number of thousands of delivered lines of code for the project, and EAF is the factor calculated above.
What is full form Cocomo?
The Constructive Cost Model (COCOMO) is a procedural software cost estimation model developed by Barry W. Boehm.
How do you use a Cocomo calculator?
INSTRUCTIONS: Choose a mode for your project based on the criteria above by selecting a corresponding radio button. Then enter the estimated lines of code in the SLOC input text box. To see your result, simply hit the “calculate COCOMO” button.
Is Intermediate Cocomo and Cocomo 2 same?
It is also called as Basic COCOMO. This model is used to give an approximate estimate of the various parameters of the project….Difference between COCOMO 1 and COCOMO 2:
| COCOMO I | COCOMO II |
|---|---|
| Effort equation’s exponent is determined by 3 development modes. | Effort equation’s exponent is determined by 5 scale factors. |
What are the weakness of Cocomo II model?
The disadvantages of COCOMO include: ® It ignores requirements volatility (but an organization may add this as an extra adjustment factor in computing EAF). ® It ignores documentation and other requirements. ® It ignores customer attributes—skill, cooperation, knowledge, and responsiveness.
Why we use Cocomo 2 model?
COCOMO II is useful in non-sequential, rapid development and reuse models of software. It provides estimates pf effort and schedule. It provides estimates that represent one standard deviation around the most likely estimate. This model is based upon the linear reuse formula.
What are some disadvantages of Cocomo?
Disadvantages :
- It ignores the hardware issues as well as the personal turnover level.
- It ignores all the documentation and requirements.
- It mostly depends on time factors.
- It limits the accuracy of software costs.
- It oversimplifies the impact of safety or security aspects.
