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Presentation 3 for LIBR 266, Dr. Loertscher, Spring 2011.
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2. Collection Mapping Methods
Used BISAC headings for basis of categories
Subject searches through ILS and OPAC
Circulation data from July 1, 2010 to present
Sorted 84,000+ items by call number and exported to Excel
Used formulas to add number of times items circulated and assigned
to categories
Data visualizations created through IBMs free program Many
Eyes
3. Limitations
Subject searches may count some items twice
Some items may fit into more than one category
For most items, it is impossible to tell their category just by
viewing the title.
Need more extensive ILS reporting capabilities
4. 5. 6. Collection Size Compared to Circulation
3.1
7.8
4.5
2.0
3.3
2.9
1.1
5.1
6.3
1.1
1.7
6.6
8.5
3.1
1.4
3.1
5.8
2.1
2.1
4.2
2.8
1.5
4.5
6.3
2.0
2.3
1.8
3.3
2.8
1.9
2.8
0.84
2.0
0.89
3.3
3.7
2.4
4.9
0.97
1.4
1.2
0.37
7. Detail of Special Collections
Remaining collection turnover rate: 3.0
8.18
10.9
10.0
3.8
8. References
IBM. (2010). Many eyes. Retrieved from
http://www-958.ibm.com.