test creat prop panel sequenc diagram prop panel factori factori sequenc diagram prop panel factori prop panel pp pp factori creat prop panel equal creat proppanel object pp object object pp factori creat prop panel equal creat proppanel object sequenc diagram pp uml sequenc diagram seq diagram uml sequenc diagram pp factori creat prop panel seq diagram proppanel valid diagram pp equal invalid proppanel prop panel uml sequenc diagram pp 