public void addHardwareDesignerToMapUC7(HardwareDesigner aDesigner) {
   this.getHardwareDesignersMapUC7().put(aDesigner.getName(), aDesigner);
   aDesigner.setMappedEmployerUC7(this);
 }
 public void removeHardwareDesignerFromMapr(HardwareDesigner aDesigner) {
   this.getHardwareDesignersMap().remove(aDesigner.getName());
   aDesigner.setMappedEmployer(null);
 }