From Steve Bosch at the University of Arizona:
From Martha Hruska at UC/San Diego:We have measured the amount of time required to withdraw materials. Since we have removed over 350,000 vols the number seems to hold up for our planning purposes. This is an average for all types of withdraws from serials with multiple items to books. Over the years the avg has been about 6 min per title. This includes pulling the item from the stacks – updating local records, updating OCLC holdings, and the physical processing of the de-accessioned item.
These are both useful indicators, but of course represent only a portion of the overall cost of deselection. They also measure things differently:When we can do large batch processing of withdrawals, our Facilities manager estimates that the pulling, stamping, boxing, staging, and transporting to Surplus Sales costs approx. 25 cents per volume. When we need to pull up records one by one using student help, the price doubles to 50 cents per volume (on average).
- U of A: 6 minutes per title (or 10 titles per hour)- does not appear to include transport.
- UCSD: 25-50 cents per volume (including transport).
These back-of-the-envelope calculations point to a clear need for a comprehensive cost model for deselection, which would need to include the intellectual work (data gathering and deselection decision-making), as well as normalizing the physical handling and record maintenance tasks captured in the examples above:
- Identification of no/low-circulation titles
- Determining/negotiating parameters for deselection (imprint date ranges, title protection rules)
- Identification of holdings by consortial partners or WorldCat
- Staging titles for physical review, condition comparison
- Selector time/Faculty time spent in review of lists and physical items
- Error correction--books that don't match records, etc.
- Physical Handling
- Pulling from shelves or staging area
- Library stacks vs various storage facilities
- Record Maintenance
- Local bib and item record updates
- OCLC holdings updates
- Insertion of URL to digital version
- Disposition Options
- Packing and staging
In short, deselection policies, workflow designs, and systems capabilities dramatically influence transaction costs for deselection. In subsequent posts, I will outline a conceptual model for estimating deselection costs that can accommodate these variables. [Update: Links to other posts follows:]
- Cost of Deselection (2): Fixed Costs
- Cost of Deselection (3): Wage Rates
- Cost of Deselection (4): Data Comparisons
- Cost of Deselection (5): Title Review from Lists
- Cost of Deselection (6): In-Stack Review
- Cost of Deselection (7): Staged Review
- Cost of Deselection (8): Disposition Options
- Cost of Deselection (9): Data Comparisons Revisited
- Cost of Deselection (10): Summing Up