Systematic Review are CONDUCTED according the Cochrane or JBI Guidelines.
They are REPORTED according the PRISMA standards.
These two process must be documented within your methodology section.
Cochrane Handbook - Chapter 15: Interpreting results and drawing conclusions
JBI Manual for Evidence Synthesis - Chapter 12.3 The systematic review
The aim of the PRISMA Statement is to help authors improve the reporting of systematic reviews and meta-analyses.
The purpose of the qualitative synthesis within a systematic review are to:
Additionally the qualitative synthesis should:
Source: https://hslguides.osu.edu/systematic_reviews/synthesize