The System Administration workspace acts as a starting point for the activities that you conduct in your Certinia system administration role. Information and alerts are provided to assist with managing your org.
Workspaces use Lightning Experience to take full advantage of the Lightning App Builder. This means you can customize your users' experience based on their specific requirements. The changes you make are saved in a cloned app. The original app remains unchanged.
Tasks
Setting up the System Administration Workspace
Customizing the System Administration Workspace
Reference
Product Updates and Versions Overview