Tell me about development methodologies: Scrum, Waterfall, Kanban

Scrum, Waterfall, and Kanban are popular software development methodologies, each with its own features and areas of application.

• Waterfall (Cascade Model) is a classic linear approach where the development process is divided into sequential phases: requirements analysis, design, implementation, testing, deployment. Each phase is completed fully before moving to the next. Suitable for projects with well-defined requirements and low likelihood of changes.

• Scrum is an agile methodology from the Agile family, based on iterative development. Work is divided into sprints (usually 2-4 weeks), at the end of each of which the team demonstrates a working product. Roles (Product Owner, Scrum Master, team), daily stand-ups, retrospectives, and planning are important. Scrum is well-suited for projects with changing requirements.

• Kanban is a visual task management methodology using a board where tasks move across columns (e.g., "To Do", "In Progress", "Done"). Kanban does not require fixed iterations and allows flexible management of workflow, limiting the number of tasks in progress at once (WIP). Suitable for support and continuous development.