@classmethod
def personalInformationManager(cls):
    """
        Class method to get a reference to the personal information manager.
        
        @return reference to the personal information manager
            (PersonalInformationManager)
        """
    if cls._personalInformationManager is None:
        from .PersonalInformationManager import PersonalInformationManager
        cls._personalInformationManager = (PersonalInformationManager.
            PersonalInformationManager())
    return cls._personalInformationManager
