paramet build paramet object object type todo uml event paramet event metaclass uml correspond trigger metaclass uml uml superstructur page behavior featur illeg argument except paramet attach behavior featur non nl type type illeg argument except type paramet instanc type non nl runnabl run runnabl run paramet param creat paramet param set type type type behavior featur own paramet add param param add param chang command cmd chang command model impl run creat paramet own edit domain command stack execut cmd cmd set object run param paramet run param 