MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 03/16/02 through 03/22/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 17 41 58
Davis 10 0 10
Irvine 10 0 10
Los Angeles 0 3 3
Riverside 1 4 5
San Diego 4 3 7
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 2 2
Other - UC 0 2 2
Other-Network UC n/a 12 12
_______ ______ _____
42 67 109
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 0 8 36
2-4 a.m. 1 2 1
4-6 a.m. 0 0 0
6-8 a.m. 8 12 41
8-10 a.m. 9 19 63
10-12 a.m. 15 37 186
12-2 p.m. 19 50 488
2-4 p.m. 29 63 1,045
4-6 p.m. 18 40 427
6-8 p.m. 4 6 226
8-10 p.m. 5 23 105
10-12 p.m. 1 1 91
__________ __________ __________ _________________
Total: 109 261 2,709
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 38 109 147
Davis 18 0 18
Irvine 34 0 34
Los Angeles 0 2 2
Riverside 3 9 12
San Diego 5 3 8
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 3 3
Other - UC 0 0 0
Other-Network UC n/a 37 37
_______ ______ _____
98 163 261
Number of FIND commands by database
WorldCat 0
Art Index 22
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 239
RILM Index 0
Total number of FIND commands 261
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 820 570 1,390
Davis 55 0 55
Irvine 472 0 472
Los Angeles 0 69 69
Riverside 22 44 66
San Diego 326 35 361
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 45 45
Other - UC 0 0 0
Other-Network UC n/a 251 251
_______ ______ _____
1,695 1,014 2,709
Number of Records Displayed by database
WorldCat 0
Art Index 47
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,662
RILM Index 0
Total number of Records Displayed 2,709
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 14 12.8%
ArticleFirst 0 0.0%
ContentsFirst 0 0.0%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 0 0.0%
ProceedingsFirst Index 0 0.0%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 95 87.2%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 8.4%
Percent of searches done in the JRNL database 0.0%
Percent of searches done in the JRNLT database 0.0%
Percent of searches done in the EDUC database 0.0%
Percent of searches done in the GDOC database 0.0%
Percent of searches done in the PAPR database 0.0%
Percent of searches done in the PROC database 0.0%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 0.0%
Percent of searches done in the MLA database 91.6%
Percent of searches done in the RILM database 0.0%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.7
Standard deviation in seconds 2.3
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.6
Standard deviation in seconds 0.5
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 3:04
Average session length (minutes:seconds) 5:40
Longest session recorded (minutes:seconds) 17:09
Average number of searches completed per session 1.6
Retrievals per search - median 0.0
Retrievals per search - average 7.2
Retrievals per search - standard deviation 18.3
Percent of searches completed with 0 results 54.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 22 23.2%
DISPLAY (excluding automatic displays) 9 9.5%
HELP 14 14.7%
EXPLAIN 12 12.6%
SET/RESET 3 3.2%
SHOW 4 4.2%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 24 25.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 7.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.1%
SHORT 92.9%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.0%
Art Index Database Statistics continued:
________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 4 18.2% 3 75.0% 2 2.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CORPORATE 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 3 13.6% 3 100% 0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
PLACE OF PUBL. 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 15 68.2% 6 40.0% 5 17.4 26.1
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 22 100% 12 54.5% 5 15.9 25.1
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 7:25
Average session length (minutes:seconds) 10:14
Longest session recorded (minutes:seconds) 67:58
Average number of searches completed per session 2.5
Retrievals per search - median 2.5
Retrievals per search - average 189.7
Retrievals per search - standard deviation 1296.1
Percent of searches completed with 0 results 36.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 231 37.0%
DISPLAY (excluding automatic displays) 127 20.3%
HELP 16 2.6%
EXPLAIN 41 6.6%
SET/RESET 36 5.8%
SHOW 2 0.3%
ADD ON (AND, OR, AND NOT) 8 1.3%
LOGON or LOGOFF 129 20.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 35 5.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.2%
SHORT 88.3%
LONG 8.4%
TAGS 0.0%
FIELDS 0.6%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.6%
MLA Bibliography Database Statistics continued:
_______________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
SUBJECT 56 24.2% 23 41.1% 73 177.8 382.8
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 81 35.1% 33 40.7% 8 45.4 83.1
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 18 7.8% 5 27.8% 13 112.3 200.7
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
ISSN/ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 76 32.9% 22 28.9% 11 252.3 1690.5
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 1 0.4% 1 100% 0 0.0 0.0
Single 229 99.6% 81 35.4% 13 156.3 1037.0
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 17.6%
Ten most frequent errors:
1. First word of command is invalid 43.5%
2. NS command - no next screen 22.7%
3. FIND command with invalid index name 7.1%
4. Valid command at an inappropriate time 6.5%
5. PS command - no previous screen 3.2%
6. NS of SHOW/EXP command-no next screen 1.9%
7. MAIL command not available from this db 1.9%
8. 956 1.9%
9. DISPLAY command contains invalid word 1.3%
10. Search term missing from search command 1.3%
11. All others 8.4%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 28.3%
2. Unrecognized term-reminders off 20.8%
3. GUIDE (ART DB) 11.3%
4. INDEXES (MLA DB) 7.5%
5. DATABASES 7.5%
6. LOCATE (Z39.50 DBS) 5.7%
7. LOCATE (Z39.50 DBS) 3.8%
8. G297 1.9%
9. G591 1.9%
10. G701 1.9%
11. All others 9.4%
Ten most frequent HELP situations:
1. Help requested from SET DB command 22.9%
2. FIND command with zero results 21.7%
3. First word of command is invalid 20.5%
4. Valid command at an inappropriate time 6.0%
5. FIND command with invalid index name 6.0%
6. DISPLAY command-first of >1 screen 3.6%
7. DISPLAY command - last of >1 screen 3.6%
8. DISPLAY command-complete in one screen 2.4%
9. 814 2.4%
10. SET DB command entered w/o modifier 1.2%
11. All others 9.6%
Ten most frequent SHOW requests:
1. GLOSSARY 50.0%
2. SYSTEM NEWS 16.7%
3. HISTORY 16.7%
11. All others 16.7%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)