Figure 2: Workgroups Literature Review Methodologies.

For domains in which the initial literature review produced adequate literature, scoping or rapid reviews were conducted. The purpose of a scoping review is to summarize the body of literature, identify key topics and concepts, and describe existing research efforts and directions. A rapid review uses a simplified but systematic approach to identify, select, and analyze data from the literature. For domains in which the initial review produced insufficient literature, the workgroups conducted a state-of-the-art review, which provides an overall summary of the latest knowledge in the domain, or a foresight review, which focuses on emerging trends and future directions within the domain.