6: Planning a review
A detailed plan for a review is commonly known as a protocol. Developing a plan is an iterative process that can take some time, especially when you are new to the task. Your first draft is likely to change as you learn more about what is needed. If you plan to publish your review it is now a common requirement to either publish or register the protocol before starting the actual review or at least register the protocol in a public database.
Prospero is an international database that prospectively registers systematic reviews in health and social care. The main purpose of databases like Prospero is to minimise duplication of reviews. These databases also reduce reporting bias by allowing completed reviews to be compared with planned protocols.
When planning a review you need to think about how it will be structured. Figure 1 shows the main components of a review.
Product of systematic process to synthesise empirical evidence based on pre-specified criteria to answer specific research question