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.
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.
Why is JSTOR able to offer a more generous trigger policy than other aggregators? Due to the high level of discovery and usage that occurs on the JSTOR platform, we can set a high trigger threshold while ensuring 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 either directly with JSTOR or through GOBI Library Solutions.
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.
Partnership with GOBI Library Solutions
Libraries can manage JSTOR DDA through GOBI and use its workflow services to prevent duplication and content gaps across vendors and formats. GOBI’s multi-vendor service cascades the DDA option based on the library’s preferences. Libraries can choose between GOBI’s MARC records or JSTOR’s free records delivered by OCLC.
There is no upfront deposit required for JSTOR DDA through GOBI; rather, the library will be invoiced for titles that are triggered through usage. Tiered savings are available to each library and consortium.
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 your direct or GOBI-managed DDA. 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.