olemus
uurimis- või analüüsimeetod, mis põhineb objekti detailsel kirjeldamisel
Wiktionary:
1. (uncountable) research performed in detail on a single individual, group, incident or community, as opposed to, for instance, a sample of the whole population
2. (countable) a case used in a such research

ülevaateid
https://en.wikipedia.org/wiki/Case_study
https://www.sagepub.com/sites/default/files/upm-binaries/41407_1.pdf
http://www.qualitative-research.net/index.php/fqs/article/view/2655/4079
https://wac.colostate.edu/repository/writing/guides/guide/index.cfm?guideid=60
http://psyking.net/htmlobj-3837/case_study_as_a_research_method.pdf
https://sites.ualberta.ca/~iiqm/backissues/6_2/vanwynsberghe.pdf

näiteid
https://som.yale.edu/news/2018/12/top-40-most-popular-case-studies-of-2018
https://blog.hubspot.com/marketing/case-study-examples
https://venngage.com/blog/case-study-examples/
http://www.bankinfosecurity.com/interviews/case-study-avoiding-outsourcing-risks-i-2146
https://www.pwc.co.uk/who-we-are/purpose/schools-toolkit/materials/business-case-study-challenges/case-study-1-student-information-pack.pdf
https://cybersecop.com/cyber-security-case-study