A library-friendly program with generous trigger policies

JSTOR’s Demand-Driven Acquisition (DDA) program offers access to a large set of titles for discovery and use, but your library only pays for those that reach a threshold of usage. This model allows libraries to align purchases more closely with patron needs, and ensures that you’ll never pay for titles that go unused.

Title list (xlsx)

An outstanding value for libraries

In JSTOR’s DDA program, a title is triggered for acquisition when its usage reaches seven total item requests (for consortia, the threshold is customized based on the number of participating members). Usage of the frontmatter and backmatter doesn’t count toward the trigger threshold to ensure that only substantive use leads to a purchase. In addition, all usage under the trigger threshold is free; there are no short-term loan costs.

We set our usage threshold for DDA triggers to ensure that the model is sustainable for both libraries and publishers. Our model guarantees that titles have already had significant usage when they are triggered for purchase, and post-purchase usage is high as well; in fact, ebooks acquired through our DDA program have an average of 17 chapter uses in the first year after purchase, and 16 in the second year.

Workflow options to suit your library’s needs

To support libraries’ preferred workflows, we offer the option of managing your DDA participation directly through JSTOR, through GOBI Library Solutions from EBSCO, or through ProQuest’s OASIS or Rialto marketplaces.

Managing DDA directly through JSTOR

We robustly support our direct DDA program and update it regularly based on feedback from library participants. In our direct model, libraries control the titles they offer to users by creating a profile based on criteria including price, publisher, discipline, language, and copyright year; you can also exclude titles based on a holdings comparison. JSTOR offers free MARC records through OCLC as well as integration with the major discovery services.

The library sets up a deposit account, which is debited as titles are triggered for acquisition. Once titles are purchased, the library has perpetual access to them with no ongoing fees. Tiered savings are available, as well as additional savings based on the size of the upfront deposit.

Managing DDA through EBSCO or ProQuest

Libraries can choose to manage JSTOR DDA through GOBI Library Solutions, ProQuest Rialto, or ProQuest OASIS. These services help libraries prevent duplication and content gaps across vendors and formats, and offer multi-vendor DDA workflows that update title pools based on each participant’s preferred platforms. Libraries can use JSTOR’s free MARC records delivered by OCLC or use the MARC records offered through EBSCO or ProQuest.

There is no upfront deposit required for JSTOR DDA through these vendors; the library can instead choose to be invoiced for triggered titles on a regular basis. Tiered savings are available to libraries.

Combining DDA and EBA

Many of our library participants want to offer a broad range of content while controlling costs. One option to consider is combining DDA with Evidence-Based Acquisition (EBA). EBA offers unlimited access to a large set of backlist titles for a predictable annual cost, and the library decides which titles to select for acquisition at the end of the access period.

EBA is managed directly through JSTOR, but you can easily combine it with Demand-Driven Acquisition whether you manage DDA through JSTOR, EBSCO, or ProQuest. We ensure that all titles in EBA are excluded from your DDA profile so they are not automatically triggered if they reach the usage threshold.