Development methodologies are structured approaches used in project management and software development to guide teams in planning, executing, and delivering projects. These methodologies provide frameworks that help teams organize their work, manage resources, and ensure quality. Common examples include Agile, Waterfall, and Scrum, each with its own set of principles and practices. Choosing the right development methodology depends on the project's requirements, team size, and desired outcomes. For instance, Agile focuses on flexibility and iterative progress, while Waterfall follows a linear sequence of phases. Understanding these methodologies helps teams improve efficiency and collaboration throughout the development process.