Feature-Driven Development (FDD) is another software development methodology that focuses on iterative and incremental development while emphasizing the construction of features as the central organizing concept. FDD places a strong emphasis on collaboration, domain modeling, and delivering tangible, working features to the users.

Here are the key concepts of Feature-Driven Development:

1. Domain-Driven Design: FDD starts with domain modeling, where the system's domain is broken down into manageable and understandable parts. These domain models help to create a shared understanding of the problem space among the development team.

2. Features as Units of Work: In FDD, development work is organized around building features, which are small, well-defined units of functionality that provide value to the users. Each feature is designed, implemented, and tested before moving on to the next one.

3. Iterative and Incremental: Like other agile methodologies, FDD promotes iterative and incremental development. The project is divided into timeboxed iterations, during which a set of features is designed, implemented, and tested. This approach allows for regular feedback and adjustments.

4. Collaboration and Ownership: FDD encourages collaboration among developers and stakeholders. Cross-functional teams work together to deliver features. Developers take ownership of specific features, which fosters a sense of responsibility and accountability.

5. Regular Inspections: FDD includes regular progress checks and inspections to ensure that the development process is on track. These inspections help identify any deviations from the plan and allow for corrective actions to be taken.

6. Prioritized Feature List: The project's features are listed and prioritized based on their business value. This helps guide the development team in deciding which features to work on next.

7. Component/Class Ownership: FDD promotes the idea of component and class ownership, where specific team members are responsible for certain parts of the codebase. This can lead to better code quality and maintainability.

8. Emergent Architecture: FDD encourages the emergence of the system architecture as development progresses. While there is an initial high-level design, the architecture evolves as new features are developed.

Feature-Driven Development is suited for projects that have well-defined requirements and a clear focus on delivering specific features. It can be particularly effective in larger projects where a systematic approach to managing features is essential. Like other methodologies, FDD can be adapted to suit the needs of a particular project and organization.