Research area appraisal is the process of evaluating and assessing the quality, relevance, and significance of a specific area of research. This involves critically examining the existing literature and research findings to determine the current state of knowledge, identify gaps or weaknesses in the field, and suggest potential areas for further investigation. The goal of research area appraisal is to help researchers, policymakers, and other stakeholders make informed decisions about where to focus their efforts and resources in order to advance knowledge and address important research questions. This process often involves conducting systematic reviews, meta-analyses, and other types of synthesis to synthesize and summarize the existing research on a particular topic.