Abstract

Literature review is a more or less methodical approach of gathering and combining prior research knowledge. A solid basis for knowledge advancement and theory building is established by a well-executed review as a research approach that can answer research questions more effectively than any one study by combining the conclusions and viewpoints of numerous empirical finding. Any research project must include a review of past, pertinent material because strong review lays the groundwork for knowledge expansion. It makes it easier to create theories, identifies places where there is a dearth of research, and closes those gaps.
A literature review is an analysis of already published content that is pertinent to a certain problem, area of study, subject, or theory. This survey will undoubtedly give readers a brief summary of the sources being examined, but it will also, and perhaps more crucially, give them a critical assessment of those sources. A literature review covers information that has been published in a specific field of study, and occasionally information that has been published within a specific time frame.
There are many justifications for conducting a literature review, including gathering data for the development of policies and evidence-based care, a phase in the research process, and as part of an academic evaluation. Focus should be placed on the review's significance and importance before writing it, because the review that is being conducted should be questioned to see if it satisfies the need to generate new or redefined concepts on a specific topic of interest, if it is being produced for an awareness of current knowledge, or if it reveals gaps for further research.
Systematic literature reviews (SRs) aim to include all published evidence on the subject and evaluate the quality of this evidence while synthesizing scientific evidence to answer a specific research question in a transparent and reproducible manner. Reviews of the relevant literature are essential for dissertations and journal articles, so the researchers must show that they have a formal understanding of the literature in their discipline, intellectual independence, information fluency, and the capacity to consistently reevaluate theories and methods.