Munn, Z., Peters, M. D. J., Stern, C., Tufanaru, C., McArthur, A., & Aromataris, E. (2018). Systematic review or scoping review? Guidance for authors when choosing between a systematic or scoping review approach. BMC Medical Research Methodology, 18(1), 143. https://doi.org/10.1186/s12874-018-0611-x
Systematic reviews are meant to be transparent and reproducible. Meeting with a librarian for your search strategy will help with this.
What is a systematic review?
This type of review is a specific methodology that aims to comprehensively identify all relevant studies on a specific topic, and to select appropriate studies based on explicit criteria.
In contrast to a conventional literature review, a systematic review (SR) is transparent, verifiable, and reproducible, and, as a result, the likelihood of bias is considerably smaller.
Many SRs (but not all) also include a meta-analysis, in which statistical analysis techniques are used to combine the results of individual studies to arrive at a more accurate estimate of effects.
In some cases, systematic reviews are not only used as a way to aggregate evidence relating to a specific topic, but also to make clear what is not known and, thereby, to direct new primary research into areas where there is a gap in the body of knowledge.