Opening up a can of worms to grow a garden!

• Project Context, Task and Goals

• Methodology, Data Collection, Data Cleaning

• Analytical Plan

• Initial Findings

• Challenges and Future Directions

• Big Data

• Assessment and Evaluation Environment

• Prove (or Disprove?) Value

• Stakeholders

• User Needs

Research Question 1: What are the best measurements for evaluating the current scope of the collection?

Research Question 2: What subject areas are not adequately covered in the current collection?

went smaller

started big . . .

• Realistic timeline

• Reached out to collaborators

• Befriend any and all programmers and/or data sources!

• Update stakeholders continuously for validation

• Highly influenced by the CUL Print Collection usage report

• No language analysis

• No patron analysis

• Initially was going to include all formats, all resource types–Excluded eBooks: Mostly no call

numbers–Excluded databases: Many too

broad

• Study eventually focused on print monographs and serials

• Reached out to our ILL Team

• Missing Call numbers!

• 2 primary areas where data was deleted–Location: 143 823 records deleted–Call number: 14 894 records deleted

• Also, ISBN deleted

• Other data points did not require any deletion but data was corrected

• Distribution of our monograph collection by LC Class

• Distribution of subsets of our monograph collection

• Usage of our collection by LC Class– Overall usage vs. YTD usage

• Age of our monograph collection by LC Class

• Usage of our collection by age

• Comparison of usage and ILL borrowing by LC Subclass

A B C D E F G H J K L M N P Q R S T U V Z0

50000

100000

150000

200000

250000

B BC BD BF BH BJ BL BM BP BQ BR BS BT BV BX0

2000

4000

6000

8000

10000

12000

14000

A B C D E F G H J K L M N P Q R S T U V Z0

50000

100000

150000

200000

250000

300000

350000

400000

450000

Number of Titles

Aggregated Total Usage

A B C D E F G H J K L M N P Q R S T U V Z0

50000

100000

150000

200000

250000

300000

350000

400000

450000

Number of Titles

Aggregated Total Usage

Aggregated Year To Date Usage

A B C D E F G H J K L M N P Q R S T U V Z0

1000

2000

3000

4000

5000

6000

7000

8000

• 889,825 total monograph items

• 425,865 titles have not circulated (48%)

• 787,590 titles circulated 5 or less times (88%)

• 861,910 titles in last year have not circulated (97%)

A B C D E F G H J K L M N P Q R S T U V Z1955

1960

1965

1970

1975

1980

1985

1990

1976

1973

19651967

1970

1966

1980 19801979

19781980 1980

1981

1969

1982

1985

1972

19831981

19731973

Average Publication Year

Total Circulations Total YTD Circulations

<= 0 1 - 1 2 - 5 6 - 5051 - 100 101+ <= 0 1 - 1 2 - 5 6 - 50

51 - 100 101+

Publication Year

<= 1950 19% 10% 6% 3% 1% 0% 13% 3% 2% 1% 0% 0%1951 - 1970 25% 20% 15% 10% 5% 5% 20% 8% 4% 4% 0% 0%

1971 - 1990 32% 34% 35% 35% 29% 13% 34% 20% 13% 10% 0% 0%

1991 - 2000 9% 16% 25% 39% 52% 42% 17% 24% 21% 14% 0% 33%

2001 - 2005 6% 10% 12% 11% 7% 13% 8% 17% 19% 17% 0% 0%

2006+ 10% 11% 8% 3% 6% 28% 8% 28% 41% 54% 100% 67%Total Items 422,843 156,129 204,948 101,355 622 160 858,178 24,503 3,211 158 4 3

𝑃𝐸𝑈=𝑃𝑒𝑟𝑐𝑒𝑛𝑡𝑈𝑠𝑎𝑔𝑒

𝑃𝑒𝑟𝑐𝑒𝑛𝑡𝑜𝑓 𝐻𝑜𝑙𝑑𝑖𝑛𝑔𝑠

𝑃𝐸𝑈 𝐵=1.43%1.32%

=1.08

1.32%

1.43%

If PEU>1 OverusedIf PEU<1 Underused

𝑅𝐵𝐻=𝑃𝑒𝑟𝑐𝑒𝑛𝑡 𝑜𝑓 𝐼𝐿𝐿𝐵𝑜𝑟𝑟𝑜𝑤𝑖𝑛𝑔

𝑃𝑒𝑟𝑐𝑒𝑛𝑡𝑜𝑓 𝐻𝑜𝑙𝑑𝑖𝑛𝑔𝑠%

𝑅𝐵𝐻𝐵=0.79%1.43%

=0.6

Mean RBH=1.54±5.18If RBH>Mean RBH OverusedIf RBH<Mean RBH Underused

LC Subclass

Percent of Holdings

Percent Usage PEU

Holdings Usage

Percent of ILL Borrowing RBH ILL Usage

B 1.32% 1.43% 1.08 Overused 0.79% 0.60 UnderusedBC 0.09% 0.08% 0.82 Underused 0.05% 0.51 UnderusedBD 0.24% 0.20% 0.84 Underused 0.24% 1.01 UnderusedBF 1.22% 1.78% 1.46 Overused 2.00% 1.64 OverusedBH 0.07% 0.09% 1.29 Overused 0.05% 0.68 UnderusedBJ 0.22% 0.27% 1.21 Overused 0.18% 0.79 UnderusedBL 0.42% 0.65% 1.56 Overused 0.69% 1.65 OverusedBM 0.10% 0.07% 0.67 Underused 0.09% 0.95 UnderusedBP 0.13% 0.26% 1.95 Overused 0.34% 2.57 OverusedBQ 0.04% 0.10% 2.63 Overused 0.32% 8.05 OverusedBR 0.36% 0.33% 0.91 Underused 0.70% 1.96 OverusedBS 0.22% 0.16% 0.73 Underused 0.36% 1.62 OverusedBT 0.16% 0.13% 0.85 Underused 0.40% 2.53 OverusedBV 0.18% 0.15% 0.86 Underused 0.44% 2.49 OverusedBX 0.52% 0.29% 0.56 Underused 1.69% 3.23 Overused

If PEU>1 OverusedIf PEU<1 Underused

If RBH>Mean RBH Overused

If RBH<Mean RBH Underused

Mean RBH=1.54±5.18

LC Subclass Holdings Usage ILL Usage ActionB Overused Underused No ChangesBC Underused Underused Ease OffBD Underused Underused Ease OffBF Overused Overused Growth OpportunityBH Overused Underused No ChangesBJ Overused Underused No ChangesBL Overused Overused Growth OpportunityBM Underused Underused Ease OffBP Overused Overused Growth OpportunityBQ Overused Overused Growth OpportunityBR Underused Overused Change PurchasingBS Underused Overused Change PurchasingBT Underused Overused Change PurchasingBV Underused Overused Change PurchasingBX Underused Overused Change Purchasing

1. Availability of expertise– Pulling data from Sierra– Getting interlibrary loan data

2. Availability of data– Lack of data from cataloging records

of ebooks– Databases

3. Data accuracy– Data cleaning!

• Limit to what data are available and whether it can be analyzed by subject–Data excluded:• E-books• Government documents• Theses/dissertations• Microform/microfiche• Other UH systems campuses holdings

– Factors not put into consideration• Reserved books• Reference books

• Circulation counts by subjects• Interlibrary loan requests

distribution by subjects

Identified the gap at the macro-level

• Item counts of the print monographs1. Collection count2. Subject distribution3. Age of collection by Subject

Serials collection

Monographs

Serials

Warning: Proportion in the image doesn’t reflect UH holdings

• Looking into collection at a more granular level

Photo credit: Rick Diffley Photography http://www.rickdiffleyphotography.com/2012/05/06/word-press-weekly-photo-

challenge-unfocused-2/

B: Philosophy UnderusedBC: Logic UnderusedBD: Speculative philosophy UnderusedBF: Psychology OverusedBH: Aesthetics

UnderusedBJ: Ethics UnderusedBL: Religion. Mythology.

Rationalism OverusedBM: Judaism UnderusedBP: Islam. Bahai Faith. Theosophy

etc. OverusedBQ: Buddhism OverusedBR: Christianity OverusedBS: The Bible OverusedBT: Doctrinal Theology OverusedBV: Practical Theology OverusedBX: Christian Denominations Overused

Collection proportionally overused and demands a lot of ILL Support

Collection proportionally Underused with little outside demand

Existing collection underused but has overuse of ILL

ILL underused, but what we have is used heavily

Aguilar, W. (1986). The application of relative use and interlibrary demand in collection development. Collection Management, 8(1), 15-24. Knievel, J. E., Wicht, H., & Connaway, L. S. (2006). Use of circulation statistics and interlibrary loan data in collection management. College & Research Libraries, 67(1), 35-49.. John N. Ochola PhD (2003) Use of circulation statistics andInterlibrary loan data in collection management, Collection Management, 27:1, 1-13,DOI:10.1300/J105v27n01_01 Mills, Terry R. (1982). The University of Illinois Film Center Collection Use Study. http://files.eric.ed.gov/fulltext/ED227821.pdf  "Report of the Collection Development Executive Committee Task Force on Print Collection Usage." (2012).Cornell University Library, http://staffweb.edu/system/files/CollectionUsageTF_ReportFinal11-22-10.pdf