Baselines are rules you target to collections of machines to test for compliance. A software update deployment is a form of a baseline. It contains a group of patches and rules to test for clients. In CM12, baselines can also remediate settings you want to change.
You should now see a CI called Company Server Policy in the right-hand pane of Configuration Items, under Assets and Compliance | Compliance Settings | Configuration Items. If not, complete the previous task to create it. If you don't already have a collection created to pilot baselines to, create one before proceeding.
In the CM admin console, navigate to Assets and Compliance | Compliance Settings | Configuration Baselines and click on Create Configuration Baseline in the ribbon to launch the Create Configuration Baseline Wizard.
Enter
Company Security Baseline
for Name. Click on Add and choose Configuration Items to open a list of possible CIs to add. Click on Company...