Not part of my experience, but...

Usually when the abuser is aware of the alter and/or tried to create alters, give them names, train them, that is common in RA. Ritual abuse is usually a cult or religious setting. But the same behaviors can be used by parents or caregivers, or really any abuser. To the same effect... it's a lot harder to deal with later on in life, because the programming is so deep and the alters do not trust anyone for a long time.