Recommended Practices for
Demand-Driven Acquisition
(DDA) of Monographs
NISO Update
Sunday, June 24, 2012
Michael Levine-Clark, University of Denver
[email protected]
Patron-Driven Acquisition (PDA)
 Acquisition of library materials based on direct
or indirect patron input, including faculty
requests and analysis of collection usage
Demand-Driven Acquisition (DDA)
 Acquisition of library materials based on
patron selection at the point of need.
Why DDA?
Rebalance collection from possible use
toward immediate need
 Make many more titles available to users
 A broader, deeper collection
 Spend same amount for greater access or
less for same access
Why Do We Need Best Practices?
Management of the “consideration
pool” – the titles available for purchase
or lease
 Rules for:
 Adding titles
 Keeping unowned titles available
 Removing titles
 Managing records
A New Way of Thinking About
An evolution from getting books into the
Long-term management of discovery
tools that allow for demand-driven
access to monographs
A Disruption to the Entire Scholarly
Communication Supply Chain
Uncertainty for publishers
New role for approval vendors
 From booksellers to service providers
Changing role for academic libraries
 Stewardship vs access
Potentially similar issues for public
libraries, trade publishers
Components of DDA
 Free discovery of content
 Front and back matter
 Set amount of time in the entire book
 Set number of pages
 Temporary lease
 Purchase
 Tools and strategies for automated
management of the consideration pool
Develop a flexible model for DDA that
works for publishers, vendors,
aggregators, and libraries.
Allow for DDA plans that
 Meet local budget and collection needs
 Allow for consortial participation
 Allow for cross-aggregator
 Recommendations for
 Managing and populating the consideration
 Developing consistent models for
 Free discovery
 Temporary lease
 Purchase
 Methods for managing multiple formats
 Ways to incorporate print-on-demand (POD)
 Appointment of working group
Aug 2012
 Approval of charge, initial work
Sept 2012
 Completion of information
Feb 2013
 Completion of initial draft
Apr 2013
 Gathering of public comments
May 2013
 Completion of final draft
Aug 2013
Thank You
Michael Levine-Clark
[email protected]

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