Oracle Maximum Availability Architecture

I am excited to be going for a 3 day workshop by Oracle on the following week. At present I only aware of Oracle Maximum Availabilty Architecture comprising of the 4 parts:-

• Real Application Cluster(RAC)
• This is to protect for any DB server failure
• Automatic Storage Management(ASM)
• This is to protect from DB Storage failure
• Flashback
• This is to perform a quick undo on user or admin errors.
• Data Guard
• This is for the automated failover of DB system to standby DB site.

I do wonder if the Change Assurance Feature part of this architecture. I hope to learn more and how the MAA is integrated, deployed and what is the best practices.