MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 03/30/02 through 04/05/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 8 57 65
Davis 8 0 8
Irvine 5 0 5
Los Angeles 0 1 1
Riverside 1 2 3
San Diego 1 3 4
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 2 5 7
Other - UC 0 2 2
Other-Network UC n/a 4 4
_______ ______ _____
25 74 99
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 1 2
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 0 0 0
8-10 a.m. 7 18 104
10-12 a.m. 27 56 193
12-2 p.m. 24 77 441
2-4 p.m. 21 39 306
4-6 p.m. 7 14 90
6-8 p.m. 3 4 976
8-10 p.m. 2 19 109
10-12 p.m. 7 61 183
__________ __________ __________ _________________
Total: 99 289 2,404
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 30 164 194
Davis 19 0 19
Irvine 7 0 7
Los Angeles 0 1 1
Riverside 0 3 3
San Diego 0 4 4
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 6 31 37
Other - UC 0 17 17
Other-Network UC n/a 7 7
_______ ______ _____
62 227 289
Number of FIND commands by database
WorldCat 0
Art Index 59
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 230
RILM Index 0
Total number of FIND commands 289
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 178 744 922
Davis 68 0 68
Irvine 110 0 110
Los Angeles 0 3 3
Riverside 0 7 7
San Diego 0 1,027 1,027
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 3 148 151
Other - UC 0 92 92
Other-Network UC n/a 24 24
_______ ______ _____
359 2,045 2,404
Number of Records Displayed by database
WorldCat 0
Art Index 305
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,099
RILM Index 0
Total number of Records Displayed 2,404
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 16 16.2%
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 83 83.8%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 20.4%
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 79.6%
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 0.5
Standard deviation in seconds 1.6
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.5
Standard deviation in seconds 0.4
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 4:08
Average session length (minutes:seconds) 5:43
Longest session recorded (minutes:seconds) 15:29
Average number of searches completed per session 3.7
Retrievals per search - median 1.0
Retrievals per search - average 25.0
Retrievals per search - standard deviation 56.6
Percent of searches completed with 0 results 40.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 59 45.7%
DISPLAY (excluding automatic displays) 37 28.7%
HELP 1 0.8%
EXPLAIN 4 3.1%
SET/RESET 5 3.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 19 14.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 3.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.2%
SHORT 91.7%
LONG 2.1%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 2.1%
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 14 22.6% 6 42.9% 3 37.6 62.6
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 31 50.0% 13 41.9% 27 36.9 37.2
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 17 27.4% 7 41.2% 15 51.0 110.4
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 3 5.1% 2 66.7% 2 2.0 0.0
Single 56 94.9% 22 39.3% 22 43.3 69.4
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:19
Average session length (minutes:seconds) 11:00
Longest session recorded (minutes:seconds) 183:20
Average number of searches completed per session 2.8
Retrievals per search - median 3.0
Retrievals per search - average 50.3
Retrievals per search - standard deviation 190.5
Percent of searches completed with 0 results 30.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 228 42.1%
DISPLAY (excluding automatic displays) 127 23.5%
HELP 5 0.9%
EXPLAIN 19 3.5%
SET/RESET 42 7.8%
SHOW 4 0.7%
ADD ON (AND, OR, AND NOT) 2 0.4%
LOGON or LOGOFF 89 16.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 25 4.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 94.4%
LONG 3.3%
TAGS 0.0%
FIELDS 0.6%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.7%
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 43 18.6% 17 39.5% 25 142.3 284.0
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 42 18.2% 17 40.5% 3 133.1 301.6
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 6 2.6% 1 16.7% 79 67.6 68.2
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 140 60.6% 34 24.3% 7 39.7 183.0
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 3 1.3% 1 33.3% 3 2.5 2.1
Single 225 98.7% 67 29.8% 8 73.2 226.4
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 12.2%
Ten most frequent errors:
1. First word of command is invalid 35.5%
2. NS command - no next screen 25.8%
3. Valid command at an inappropriate time 8.6%
4. FIND command with invalid index name 7.5%
5. PS command - no previous screen 4.3%
6. Invalid SET DATABASE command issued 2.2%
7. DISPLAY command with >1 format 2.2%
8. D ABS command in database w/o abstracts 2.2%
9. SET DB command entered w/o modifier 1.1%
10. DISPLAY command - no FIND results 1.1%
11. All others 9.7%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 21.7%
2. Unrecognized term-reminders off 21.7%
3. G293 13.0%
4. DISPLAY (Z39.50 DBS) 13.0%
5. DATABASES 8.7%
6. INDEXES (MLA DB) 4.3%
7. LOCATE (Z39.50 DBS) 4.3%
8. Unrecognized term 4.3%
9. 1165 4.3%
10. DISPLAY PE 4.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 31.0%
2. 814 17.2%
3. FIND command with zero results 10.3%
4. DISPLAY command-first of >1 screen 10.3%
5. Help requested from SHOW SEARCH 6.9%
6. 278 6.9%
7. First word of command is invalid 3.4%
8. SET DB command entered w/o modifier 3.4%
9. 15 3.4%
10. 3 HELP commands issued from same code 3.4%
11. All others 3.4%
Ten most frequent SHOW requests:
1. GLOSSARY 50.0%
2. SEARCH 25.0%
3. HISTORY 25.0%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)