When should research not be conducted according to the product lifecycle?

Research should not be conducted solely when user complaints arise because this reactive approach limits the opportunity for proactive design improvements. Instead of waiting for feedback triggered by problems or dissatisfaction, research should be performed throughout the product lifecycle at various stages, including before designs are made, during the design process, and after the product launch. By conducting research at these earlier stages, designers can gather valuable insights into user needs, behaviors, and potential issues before they develop solutions. This proactive stance not only enhances user experience but can also foster innovation and continuous improvement based on user feedback over time.