PDA als Dienstleistung/PDA as a service

Patron Driven Acquisition (PDA) has been practiced at the University of Leipzig Library for several years. But the initial goal of creating an operational acquisition model for licensing e-Books with the help of an efficient aggregating platform has been abandoned. Meanwhile, for print publications, the concept of PDA has received significant development and been implemented for the first time at Leipzig's university library. PDAprint has become an integral part of the acquisition procedures for monographs and nearly doubled in volume, rising from 6% of the budget in 2013 to 12% in 2015, when 85,000 Euros were spent in this manner. PDAprint supplements the acquisitions initiated by subject specialists and aims, above all, at covering areas of literature stemming from interdisciplinary and specialized research. There were 2,200 requests for acquisitions fulfilled in 2015, or roughly 10 titles per working day, while the rate of mediated denials lay at 11%. PDA has become an established practice for printed materials and is likely to increase as the library expands and diversifies this segment. There are discussions, for example, of including academic publications in the Romance languages.