Existing methods for systematic reviews follow these steps with some variations. Not all systematic reviews follow all steps. This process typically takes between 12 and 24 months. The other pages on this guide provide more in-depth guidance for each step.
Tsafnat, G., Glasziou, P., Choong, M.K. et al. Systematic review automation technologies. Syst Rev 3, 74 (2014). https://doi.org/10.1186/2046-4053-3-74