There are two types of classes available in PEGA.
· Abstract Class
Abstract Class(for the purpose of “Re-Usability”) is only a container of rules and data and there won’t be any instances (Work Objects) in DB.
In Pega 6, every abstract class name must end with the symbol ‘-‘, from PEGA 7 onwards this convention has been removed.
· Concrete Class
Concrete Class contains rules and data and there will be an instance in DB(Used for business transactions).