References
https://www.nngroup.com/articles/which-ux-research-methods/
https://usability.yale.edu/understanding-your-user/user-interviews/user-interview-example-questions
https://www.nngroup.com/articles/user-interviews/
https://www.nngroup.com/articles/diary-studies/
https://www.nngroup.com/articles/field-studies/
https://www.nngroup.com/articles/customer-journey-mapping/
https://www.nngroup.com/articles/user-need-statements/
https://www.nngroup.com/articles/persona/
https://uxdesign.cc/ultimate-guide-to-customer-journey-mapping-ux-tools-series-b973ca442213