This paper explores multiple articles relating to qualitative research. Qualitative research has seen several transformation that aim to support contributions for this research development. As research, using a qualitative methodology rises to prevalence, this paper explores industry and academia use of this methodology. The paper review research based in the field of healthcare and social work. After analysis, the review of literature shows that a majority qualitative research are within the field healthcare (Johnson, 1999). The research conducted embraces a diverse collection of approaches to inquiry intended to generate knowledge actually grounded in human experience. The literature review also addressed “rigor” as a standard for valid research, and the impending presumption for flexibility as called for by pundits against qualitative research paradigm. It was argued that this call for rigidity could threaten the innovativeness and hence the meaning and quality of a qualitative research. The author then review and describe the concept of validity to a qualitative research paradigm and how it is applied as discussed by Creswell (2013). Creswell discusses five approach, narrative, Phenomenology, grounded theory, ethnography and case study, which we will review through the paper.