Run a systematic literature review or mapping study to the PRISMA 2020 standard: protocol with research questions and inclusion criteria written before searching, reproducible search strings per database, screening with recorded reasons for exclusion, a PRISMA flow diagram with counts, quality assessment, data extraction into a form, and synthesis, producing a method section a reviewer can audit. Use when the thesis or a chapter is a literature review, when a supervisor asks for a systematic rather than narrative review, or when a mapping study is the first contribution.
