I should have said, "traditional market research" instead, including trend and competitive analysis, segmentation, primary research such as focus groups and surveys, prototyping in front of a representative sample of users, etc.
An iterative approach is fine, once the above basics have been done, but if you need to deploy code changes in an app every day or even every week, the product is probably not ready for V1 yet.
An iterative approach is fine, once the above basics have been done, but if you need to deploy code changes in an app every day or even every week, the product is probably not ready for V1 yet.