Overall, the 4D UX methodology is a structured and user-centered approach to design. It helps teams to create solutions that meet the needs of users and solve real-world problems.
I discovered Mei Zhang’s post about when it’s the right time to apply specific product design methods.
And, for sure, it’s a common question not just among UX/UI designers, or even professionals related to design.
Just keep in mind. As a designer, designing pretty and useful interfaces and knowing user experience concepts and research methods are not enough to design a product.