La chemoinformatica: uno strumento computazionale per la chimica farmaceutica
Wcas Report 6 30 11
1. The Germanna Library Collection Analyzed
(Using WorldCat Collection Analysis from OCLC)
By Karen A. Bowers
Introduction
The WorldCat Collection Analysis Service can compare catalog records with those of any comparison
peer school, who has decided to participate in the comparison analysis. Letters to as many as ten
schools may be sent to obtain permission. As soon as permissions have been obtained, they must be
sent to OCLC. In the Administrative module, schools may be set up using the OCLC code for the schools
selected. OCLC monitors this process and makes this option available.
In the case of Germanna, we also set up a group which contained all the selected comparison
schools. This was the control group from which we could determine the percentage of materials that
were in our collection and compare it with the percentage in the other schools. We determined the
percentage by dividing the Germanna collection number by the VCCSGroup number for each major
subject heading. In order to make this comparison however, there is a basic process that must be
completed. In the Limit Analysis area, filters must be created. I found that entering the appropriate
Library of Congress classification numbers was the most assuring filter. There is a way to just use the
general filter for an OCLC subject category, but then the limit description is much less informative.
Using the “Limit Analysis” option, we were able to gather collection counts from each of the
comparison schools and the group as a whole. We searched by the general subject categories that are
used in analyzing “My Library.” We also created filters for narrower subjects, such as Veterinary
Medicine and Dentistry. Additional analysis can be made on demand by creating the filters and
analyzing each school’s data listed under the “Data to analyze” tab.
Two subject analysis pages were created in Excel. One compared the peer schools by collection
count in the OCLC subject categories and the other compared the peer schools by subject and
percentage of holdings in the VCCS control group. From this, it can be determined that the following
subject collection totals are at least half the size of the peer schools. Another way to say this is that we
need to add twice the titles in these subject areas in order to approach a comparable collection with the
other schools.
Biological Sciences
Communicable Diseases
Government Documents
2. Performing Arts
Art and Architecture
Music
Sociology.
Other subject areas that proved to be very low in the collection count are the Physical Sciences and Pre-
Clinical Sciences. It was necessary to consult the OCLC Conspectus in order to understand these
categories, as they do not align with the Library of Congress Classification System.
Physical Sciences Astronomy QB0-9999
Physical Sciences Physics, General QC0-80
Physical Sciences Weights & Measures QC81-114
Physical Sciences Experimental Mechanics QC120-168
Physical Sciences Constitution & Properties of Matter QC170-219
Physical Sciences Acoustics, Sound QC220-250
Physical Sciences Heat QC251-338
Physical Sciences Optics, Light, Radiation QC350-496
Physical Sciences Electricity, Magnetism, Nuclear Physics QC501-798
Preclinical Sciences Human Anatomy QS0-681
Preclinical Sciences Physiology QT0-275
Preclinical Sciences Biochemistry QU0-220
Preclinical Sciences Pharmacology QV0-835
Preclinical Sciences Microbiology and Immunology QW0-949
Preclinical Sciences Parasitology QX0-675
3. Preclinical Sciences Clinical Pathology QY0-490
Preclinical Sciences Pathology QZ0-380
In Art and Architecture, our collection was not on the same level as the other schools. For four of the five schools, we co
collection four times to be on the same level. Interestingly enough, J.Sargeant Reynolds had only 12% compared to over
and over 30% in one school. Clearly, Germanna’s 5 % is too low for this subject area. Music is a related field where we
low at only 8%. However, I do not know that our curriculum supports these fields enough to merit a great increase. Art bo
expensive because of the graphics. Music is not as expensive, but may not be in high demand. Our library should purcha
areas though, as these subjects do support academic excellence and a good general education.
There is a new certificate program for Dental Assistants, which will begin in Jan. 2012, and in light of the fact that ou
program is part of the NVCC program, it is time to increase the book collection in this subject area. The Dental Assistant p
program or three semesters. Students will get a CDA (Certified Dental Assistant) certificate. Our cooperative partner for t
program had a materials count of 133. Germanna has only 25 titles in Dental subjects. Doubling this collection is recomm
popular program. Here is a graph produced from analyzed data to show the need for increasing the Dentistry collection.
Dentistry
250
200
150
100 Dentistry
50
0
GCC JSRCC JTCC LFCC PCC TNCC VCCS Group
4. Steps to analyzing the collection:
Identify subject areas by graphing the collection with your filtered numbers created in the WorldCat Collection Analysis s
following analysis, we concentrated on STEM subjects. STEM stands for Science, Technology, Engineering and Mathema
graph below, that Germanna’s collection was surprisingly high in Chemistry when compared to these subject fields in ou
The question is how does this compare with the peer institutions?
18
16 Agriculture
14 Veterinary Medicine
Biological Sciences
12
Chemistry
10
Communicable Diseases
8
Dentistry
6
Engineering and Technology
4
Geography
2
Mathematics
0
Medicine
GCC
Let’s look at the Chemistry data across the board.
Chemistry
1200
1000
800
600
400 Chemistry
200
0
GCC JSRCC JTCC LFCC PCC TNCC VCCS
Group
Although our collection may be high in Chemistry, it is within reasonable limits.
5. There is no error in having more Chemistry texts than the other schools, but instead it should be noted that the Chemist
Germanna’s strengths. The next question that might be asked is. “How current are these Chemical texts?” Do we nee
strength? To answer this question, I would consult “My Library” in the WCAS.
It would be beneficial to purchase more recent titles in this area to maintain the current strength in this field. See the V
titles in Organic Chemistry and other Chemical subject areas. All community colleges may be searched and the most rec
retrieved first in a subject keyword search. See the following snap shot of such a search.The best way to compare colle
year is to conduct a subject key word search in the VCCSlinc or online catalog.
Because it is a k
most current items will be retrieved first. When subject keywords are selected, results will be very relevant, because we
terminology of the Library of Congress.
6. Conclusion
In conclusion, the WCAS does assist in finding subject areas to analyze or to analyze selected subjects as desired. The fo
necessary.
1. Contact peer institutions to retrieve permission to compare collections.
2. Send permission emails or letters to OCLC for set up.
3. OCLC will contact you, when they are ready for you to set up the Administrative module.
4. Create the Libraries within the Administrative Module.
5. Create a Control Group which contains the holdings of all the comparison schools.
Now you have the tools to determine collection counts of the various schools and a control count of entire holdings. Thi
determine percentages when compared to the control group.
Steps to set up for analyzing collections:
1. http://ezproxy.vccs.edu:2048/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=4911
liveLog into First Search. The Collection Analysis tab should be available.
2. The first place to start is the “Data to Analyze” tab.
3. Select the first school in your list.
4. The collection count of the two schools will appear.
5. Select “Limit Analysis.”
6. Create a subject profile. Once on the profile, clear it and then select subject areas. (Sometimes certain subject
profile. That is why it is necessary to clear it first.) You may also enter specific Call numbers, which you have det
for a complete analysis. Save.
7. Create as many subject filters as you wish and you are ready for the next stage in analysis.
Comparing collections by subject with WCAS:
1. Select “Data to analyze.” (Many times you may need to return here for new search)
2. Choose school.
3. Limit Analysis.
4. Select subject profile filter.
5. Run Search.
Data can be entered into an excel spreadsheet and various charts can be created with the data.
7. Here is an analysis across the board of the subjects we selected to analyze. First by collection count:
5000
Agriculture
4500
4000 Veterinary Medicine
3500
Biological Sciences
3000
Chemistry
2500
2000 Communicable Diseases
1500 Dentistry
1000
Engineering and
500 Technology
Geography
0
GCC JSRCC JTCC LFCC PCC TNCC
Here is a comparison by collection count by the subjects we selected to filter.
8. Here is another comparison converted into percentage contribution to the Control Group.
Using this information, we can determine the strengths of each individual school, by graphing the individual schools by the
grouping. Each of the following shows the schools collection by percentage of the VCCS Group, with the Group being 100
Agriculture
120
100
80
60
40 Agriculture
20
0
GCC JSRCC JTCC LFCC PCC TNCC VCCS
Group
9. Veterinary Medicine
120
100
80
60
40 Veterinary Medicine
20
0
GCC JSRCC JTCC LFCC PCC TNCC VCCS
Group
Biological Sciences
120
100
80
60
40 Biological Sciences
20
0
GCC JSRCC JTCC LFCC PCC TNCC VCCS
Group
15. It is possible to look at a summary graph of the subjects. It might give the individual school an idea of
their strengths and weaknesses in general terms.
JSRCC
70
60
50
40
30
20
10
0
JSRCC
Looking at Germanna’s again, it might be determined our collection is fairly balanced with a strength in
Chemistry. J. Sargeant Reynolds has a strength in Dentistry and Agriculture. They are also strong in
Communicable Diseases. Germanna’s strengths seem to be Chemistry and Medicine when compared
with the peer institutions.
GCC
18
16
14
12
10
8
6
4
2
0
GCC
16. This is slightly misleading though, since the numbers are the percentages and the subjects do not
include every subject in the Library of Congress classification system, but rather focused on STEM and
vocational subjects of the control group. For a truer perspective of the balance ofGermanna’s
wholecollection see WorldCat’s“My Library” graphs for individual subjects. It is best to compare
Germanna with Germanna, when looking at the distribution of the subject collections.
Note our collection is far stronger in the humanities, than in Chemistry. That is why it is best to look at
the individual subjects when comparing collections with other libraries. Then you may see how your
subject collection compares with that of other peer colleges.
There is a way to compare Libraries by Collection Count. And that is meaningful. It answers the
question, “How does our collection count compare with our select peer college’s?"
17. This shows the actual count size of the collection. When compared with the other schools, Germanna
was the smallest in size with all the comparison schools.
This is the source of the data from which charts and comparisons can be made. Attached are excel
spreadsheets comparing the schools by collection count and by percentage of the comparison group.
In addition, Interlibrary Loans may be tracked. Often the results of the highest usage are journal titles,
so this is an area that we may want to watch to see if it is appropriate to add a journal title to our
periodical collection.
Comparison can also be made to the Library Journal or College Libraries bibliographies. Unfortunately,
this is not a good source for current titles in Scientific Fields. Most titles are at least five years old.
Therefore, if currency is important to the subject, it is best to search WorldCat or the VCCSlinc.
Appendix.
Collection STEM & Other Analyzed by count and percentage of the VCCS group.
