COCOMO Model in Software Engineering Notes

• COCOMO (Constructive Cost Model) which helps to predict project costs, effort, and duration.
• The COCOMO model was first introduced by Dr. Barry Boehm in 1981.

Types of COCOMO Model in Software Engineering

• Basic COCOMO Model
• Intermediate COCOMO Model
• Detailed COCOMO Model

Basic COCOMO Model

• The basic COCOMO model provides a foundational estimation based on the project's size, measured in lines of code.
• It considers the development effort as a function of the code's size, offering a simplified yet insightful approach to project estimation.

Basic COCOMO Model in a Small Project

• Consider a simple mobile app development with approximately 10,000 lines of code.
• Using the basic COCOMO model, we can estimate the effort required for this project, providing a foundational understanding of the resources needed.

Intermediate COCOMO Model

• The intermediate COCOMO model enhances the basic model by incorporating various cost drivers such as product, hardware, and more.
• The intermediate COCOMO model takes into account factors that influence development efforts, making it suitable for medium-sized projects.

Intermediate COCOMO for a Medium-Sized Project

• Imagine a project to develop a content management system for a mid-sized company.
• Intermediate COCOMO considers various cost drivers, such as the experience level of the team, project complexity, and the need for reusable components.

Detailed COCOMO

• As projects grow in complexity, the detailed COCOMO model comes into play.
• The detailed COCOMO model dives deeper into the details of software development, considering parameters like team experience, project complexity, and reuse potential.

Detailed COCOMO for a Complex Project

• For a complex project like developing an operating system, the detailed COCOMO model becomes invaluable.
• Carefully analyzes factors like team cohesion, development flexibility, and the potential challenges posed by the project's scale.

Development Modes in the COCOMO Model

• Organic (Basic COCOMO Model)
• Semi-detached (Intermediate COCOMO Model)
• Embedded (Detailed COCOMO Model)

Source Lines of Code (SLOC)

• The foundation of COCOMO lies in the estimation of source lines of code.
• SLOC serves as a starting point for predicting the effort and resources required for the project. It forms the baseline for all COCOMO models.

Effort and Cost Drivers

• COCOMO models introduce effort multipliers that account for the specific Features of the project.
• These cost drivers include factors like development flexibility, team cohesion, and customer familiarity with the domain.

Conclusion