Design methodologies are structured approaches that guide designers in creating products, services, or systems. These methods help ensure that the design process is efficient and effective, allowing teams to solve problems creatively while meeting user needs. Common methodologies include User-Centered Design, which focuses on understanding the users' experiences, and Agile Design, which emphasizes flexibility and iterative development. By following a design methodology, teams can better collaborate and communicate throughout the project. This leads to improved outcomes, as designers can systematically test and refine their ideas. Ultimately, using a design methodology helps create solutions that are not only functional but also resonate with users.