Revisions allow you to track differences between multiple versions of your content, and revert back to older versions.
Executive Summary: An organization that provides services to researchers wants to tell its researchers about useful services from many related organizations, so it builds a service catalog using data from an aggregation service that receives information from many organizations. Examples of such organizations include: a campus research information technology (IT) department and a national research service. Examples of services include: live events, online training, research computing systems (compute, viz, storage, and instruments), software and digital services, public research data, consulting and support services, and IT guides.