What is an iterative development model?

An iterative development model is an approach to managing the project lifecycle where development is carried out in cycles (iterations). Each iteration includes planning, requirements analysis, design, development, testing, and deployment of a part of the functionality.

Main characteristics:

• Repeating cycle: The process is repeated multiple times, each time refining and expanding the product.
• Gradual addition of functionality: The product is assembled in parts, adding new features in each iteration.
• Feedback: At the end of each iteration, results are analyzed, and the next iteration is planned considering the experience gained and changes in requirements.
• Risk reduction: Early testing and integration help identify problems at earlier stages.

Advantages:

• Flexibility to changes in requirements.
• Early delivery of a working version of the product.
• Risk reduction through gradual development.
• Better project management due to breaking down into smaller parts.

Disadvantages:

• Requires clear management and planning.
• It can be difficult to determine the final project deadline at the beginning.
• Overhead costs for managing cycles.

Application examples: Agile methodologies (such as Scrum and Kanban) are based on the iterative approach.