Direct observation: This technique includes observing the topic, generally within a normal location. When someone observer is usually used, it is more common to employ a bunch of observers. Ethnographic Case Studies: Ethnographic case studies require immersing the researcher in the subject’s surroundings to get an in-depth cultural knowledge. https://case-study-analysis18864.bloggerchest.com/30440345/5-essential-elements-for-hbs-case-solution