读者主导式采购(patron-driven acquisition)(简称PDA)是1990年左右在国外高校图书馆开始兴起的一种读者服务方式。21世纪以来,随着网络的普及,加之文献资源供应商的大力推动,读者主导式采购越来越受到关注,并为众多图书馆所采用,逐渐从一种读者服务方式发展为图书采购模式。伴随着PDA在图书馆采购模式中的广泛运用,其所涉及到的读者隐私问题也越来越受到关注。 Patron-driven acquisition (PDA) is a reader service that began to emerge in foreign university libraries around 1990. Since the 21st century, with the popularization of the Internet and the promotion of document resource providers, reader-led procurement has attracted more and more attention. It has been adopted by many libraries and gradually developed from a reader service mode to a book procurement mode. With the widespread use of PDA in the library procurement model, its readership privacy issues are also receiving more and more attention.