The International Bureau of the consultancy service cost systems design for companies and institutions by pooling data on the organizational structure of the enterprises, institutions and different departments of these companies and prepare -Preparation of cost units Guide (productivity)-Handbook-a manual cost center cost elements and linked to cost centers Office preparation courses every documentary actuator allowing operating management in appropriate conditions and some documentary sessions is displayed as follows: Documentary courses for materials (add/Exchange/feedback) sessions documentary documentary courses pay other expenses documentary sessions for the manufacture of fixed assets