A case study research is usually a qualitative analysis style. It is commonly used in the social sciences as it involves observing the cases or topics within their settings with the most insignificant interference from the researcher. Flyvbjerg examines 5 misunderstandings about case study exploration and systematically "corrects" each. https://louisfkbes.thezenweb.com/the-best-side-of-help-with-case-study-69076540