Abstract Class: A class that serves only as a base class from which classes are derived. No objects of an abstract base class are created. A base class that contains pure virtual functions is an abstract base class. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous Post#include Next PostAbstract Data Type (ADT)