This project is to design and to implement an cornputenzed acquisition system by structured analysis technique for the Yomi university library. In result of desgmng, we added three subsystems, whlch are accession control, account, and print out system, to DOBIS/E acquisition system because we found that our DOBIS/E acquision system is able to use as we do ordenng and receiving in traditional process. DOBIS/E system and three added subsystems is closely related, and allow acquisition librarians to work more efficiently than before.