What are the most effective project management techniques and methodologies to ensure successful completion of a project?

The most effective project management techniques and methodologies to ensure successful completion of a project include setting clear goals and objectives, creating a detailed project plan, assigning roles and responsibilities, monitoring progress regularly, communicating effectively with team members, and adapting to changes as needed. Additionally, using tools such as Gantt charts, Agile methodology, and risk management strategies can also contribute to project success.