As mentioned at the beginning of the chapter, alerts are comprised of Symptoms, Recommendations, and Actions. Recommendations are a list of recommendations, of things you should carry out when an alert is triggered.
For example, if a virtual machine experiences high read or write latency, there are a number of things you can do to resolve the problem:
What I have just listed are recommendations, and this is exactly what is meant by vRealize Operations Recommendations.
If you navigate to Content | Recommendations, you ...