construct self associ delet test associ delet process test delet modelel self associ object model model model manag factori creat model object model core factori build model object assoc model core factori build associ object assoc model core factori build associ model uml factori delet model pump flush model event remov model uml factori remov assoc remov model uml factori remov assoc assoc remov model uml factori remov assoc 