Description

This Master Prompt establishes the conceptual and methodological foundations of umbrella reviews, connecting the research problem with the appropriate review question, evidence sources, analytical units, synthesis approach and intended contribution. It addresses the purpose of reviewing systematic reviews and meta-analyses, distinctions among related evidence-synthesis designs, justification for an umbrella review, question formulation, scope definition, eligibility principles, outcome selection, evidence availability and review feasibility. Drawing on the supplied papers across healthcare, education, logistics and computer vision, it accommodates quantitative, narrative, thematic and framework-oriented synthesis while preserving their different assumptions. Particular attention is given to distinguishing review-level findings from primary-study evidence, identifying overlapping studies, separating methodological quality from certainty of evidence, and ensuring that the available evidence supports the proposed conclusions. The framework supports research that is transparent, reproducible, appropriately bounded and useful for scholarly interpretation, practice, policy or future investigation.