Hua DONG,Tongji University Purpose of a literature review(5) To discover how others have researched the chosen topic area.Look at literature and other sources to explore methods,research questions,data availability and analysis as well as results. Purpose of a literature review (5) To discover how others have researched the chosen topic area. Look at literature and other sources to explore methods, research questions, data availability and analysis as well as results. ©Hua DONG, Tongji University