Due to the variations in products, struetures and quantities, the companies whieh want to save and develop their position in the international eompetitions have to change their produetion system and to cause to meet it to properties to adapt easily to eustomer and market requirements. To adapt this changes in produet struetures, the eompanies have to own produetion program whieh exhibits produet and quantity diversities This means flexibility in produetion, namely automation.