Know your timeframe

The Rapid Evidence Assessment Toolkit provides a useful guide to the amount of time required for different types of literature reviews.

See http://www.civilservice.gov.uk/my-civil-service/networks/professional/gsr/resources/rea-methods.aspx

This work was produced by Government Social Researchers (http://www.civilservice.gov.uk/my-civil-service/networks/professional/gsr/resources/gsr-rapid-evidence-assessment-toolkit.aspx) and the EPPI-Centre (http://eppi.ioe.ac.uk/cms/) in the UK.