232

Index
Abstracts, 7.3, 8.3.2, 9.4.5
Accents, Appendix 4
Access points, 2.4, 5.2.1, 9.4.1
Acronym keys, see Keys, acronym
Acronyms (in indexes), 5.3.2
Adaptive interface, 7.4.1, 9.4.4
Aims of project, 1.1, 1.4, 9.1
Analytical entries (records with), 4.3.3, 9.4.5
AND, 2.4.2, 2.4.4, 6.4-6, 7.4.2, 7.4.3, 7.5.2, 8.5, Appendix 8
Apple He, 3.3.1, 7.5.1
Aristotle, 5.7.5
Articles,definite and indefinite, 4.5.1, 5.4, 5.5.1, 7.3.2, 7.4.3, Appendix 4
periodical, see Periodicals
Artificial intelligence, 9.4.4, 9.5
Author input, 7.5.1, Fig. 7.12
mistakes, 8.4.3, Appendix 7
Author-only search, 7.5.2, Figs. 7.16-18, Appendices 7-8
Author/title,
derived key, 2.6.1, 5.2, 5.2.3, 7.3.2, 7.4.3, 7.5.2
input, 7.5.1, Fig. 7.8
mistakes, Appendix 7
search, 7.5.2, Fig. 7.21
Authority files, 5.4.1, 5.5, 5.5.2
Automatic,
analysis of logs, 8.2.1, 8.5, 9.4.6, Appendices 8-9
browsing, 7.3.1
display, Table 7.3
features of Okapi, 7.4.3
help, 2.6.1
indexing, 5.4
logging, see Logs
spelling correction, 9.4.2
Backup, 3.4
Beasts, 5.2.3, 5.6.5, 5.7.3, 5.7.5

Index233

use of, 6.3, 6.8, 7.4.3
Bibliographic file(s) for,Okapi, Chapter 4
OPACs, 2.2.1, 9.4.5
Bibliography, 2.1.2
Bibliotech OPAC, Fig. 7.2
Binary search, 5.6.3, 5.7.4
BLACK key, 7.5.1, 8.2.1, 8.3.2, 8.4.3, Appendix 7
BLAISE/LOCAS, 4.1
Blanks (treatment of), 5.3.3
BOOKS project, 9.4.1, 9.4.5
Booleans, 2.5.2, 6.4, 6.6, 6.9, 7.3.2, 7.4.1
see also AND, Hyper-OR, NOT, OR,
implicit, 7.4.3
Brief record display (Okapi), 7.5.3, Fig. 7.26
Browsing, 7.3.1
automatic, 7.3.1
bookshelf equivalent, 9.4.1
index order and, 5.3.1
index structure, effect of, 5.6.2, 5.6.3
IR indexes, 5.5.1
keyword OPACs, 7.3.1
minimising, 9.4.2, 9.4.5
Okapi, 7.5.3
phrase indexed OPACs for specific items, 2.4.1, 2.5.1, 7.3.1, 9.4.2
ranked records, 7.4.3
sets, 2.4.2
subjects, 5.3.1, 5.4.4, 9.4.1, 9.4.5
VDU limitations, effect of, 2.6.3, 9.2, 9.4.3
Cambridge University OPAC, 2.1.1, 4.3.2, 5.1, 5.4.1, 5.6.1
Cat analogy, 3.1
Catalogue,
drawer analogy, 5.7.4
practice US v. UK, see US
research, 2.1.2
search, types of, 2.5
Catalogues (conventional), 2.1.2, 2.3, 2.5, 2.6.2, 9.2, Appendix 5
Cataloguing (automation of), 9.3
CCR, 1.3, 2.6.3, 4.3.2, 9.4.5
Centre for catalogue research, see CCR

234

Characters),
coding (and filing order in indexes), 5.3.3
collation sequence, 5.3.3, 5.3.4, 9.4.3
non-alphanumeric, 5.3.3
representation, 5.3.3, 9.4.3
set, 5.3.3, 5.6.4
special, Appendix 4
Circulation,
control on a LAN, 3.4, 9.3
data in OPACs, 2.3, 2.6.3
systems, OPACs derived from, 2.1.1, 2.3, 2.4.1, 5.2, 9.4.5
CITE (NLM's OPAC), 2.1.1, 2.4.3, 2.4.4, 7.3, 9.4.1, 9.4.4, 9.4.6
Classification (use of, to improve searching), 9.4.1
Closure, 7.4.1
CLR study, 2.1.2, 2.6.1, 7.2, 8.1.1, 9.4.5, 9.4.6
CLSI/PAC 1, 7.3.2
Cluster/One, 3.3.1, 3.3.2
purchase, 1.3
Clustering, 9.4.1
Coloured keys, 7.5.1, 8.3.2, 8.4.3, Appendix 5
Combinatorial search, see Hyper-OR
Command language, 2.4.2, 3.2.2, 6.9, 7.3.2, 7.4.1, 7.4.2, 9.4.5
examples of, 7.3.2
Comments about Okapi, see Okapi, comments
Computational aspects,of implementing search functions, 6.6of indexing, 5.6-7
Conclusions, Chapter 9
Conditional searching, 6.3
Controlled experiments, 8.2.2
Corporate and conference names, 6.8, Appendices 1-4
in indexes, 5.4.2, Table 5.2
Cost (of hardware), 3.3.1
Cross references, 4.3.2, 5.4.1, 5.4.2, 5.5.2
Cross-tabulation, 8.3.2, Appendix 6 (Part 4)
Cut-ofT rule (for hyper-OR), 6.5, 6.6
Dartmouth College OPAC, 7.2, 7.4.1, 7.4.2
Data,compression, 5.6.4, 5.7.4
input, see User(s), input
representation in indexes, 5.6.4

Index

Indexsecurity, 3.4
types in indexes, 5.2.2, Table 5.2
D B M S , 1.3
Decision trees, see Search trees
Derived keys, see Keys, derived
Design,of L A N application software, 3.5
of Okapi, 2.7.2, 5.7, 7.4of OPACs, 2.7, 9.2, 9.4, 9.5
of user interaction, Chapter 7
pitfalls, 4.1, 4.2, 4.3, 5.4
Dewey,
in indexes, 5.2.3, 5.3.4
in Okapi file, Appendices 2-3
online, 9.4.1
truncation of, 5.2.3
Diacritics, 5.3.3, Appendix 4
Disc access(es),browsing load on, 9.4.3
effect of index structure on, 5.6.1-3, 5.6.5
importance of design of, 3.5
need to minimise, 2.7.2, 3.5
Okapi index and, 5.7
performance of project L A N s , 3.3.2
Disc digression, 5.7.2
Display, Chapter 7, 2.6.3,
brief record (Okapi), 7.5.3, Fig. 7.26
choice of (Okapi), 7.4.3, Table 7.3
evaluation of, 9.4.6
full record (Okapi), 7.5.3, Fig. 7.27
improvement of, 9.4.3
index (Okapi), 7.5.3, Figs. 7.24-25
of h y p e r - O R results, 6.6of indexes, 5.3
Okapi, general comments, 7.5.3
readability of index, 5.3.2
record, levels of, 7.5.3
Displayability of Okapi index, 5.3.4
Evaluation, 2.1.2, Chapter 8, 9.4.6, 9.5
data, 8.2.2
methodology, 8.1.1, 8.2

235

236

Exchange tapes, 4.1
False drops, 2.4.2, 5.3.3, 5.4.1-3, 5.5.1, 7.4.3, 8.2.1, 8.3.2, 9.4.1
Feedback, 9.5, see also Relevance feedback
Field(s),directory (Okapi), Appendix 3
in Okapi record, Appendix 3
selection, 4.2, Appendix 1File(s), see Bibliographic file(s), Temporary files
Filing order, 4.7, 5.3, 9.4.5
character coding and, 5.3.3
in Okapi index, 5.3.4
Foreign languages, 5.3.3, 5.5.1, 9.4.3, Appendix 4
Free text searching, 7.3, 7.4.2
Future research and development, 2.4.4, 9.4, 9.5
Fuzzy indexing, 9.4.1
Fuzzy matching, 9.4.2
Geac, 2.1.1, 2.4.1, 2.5.2, 3.2.1, 5.2, 7.2, 7.3.1, 7.4.2, 9.3
see also Sussex University OPAC
H-AND, 6.5
Hardware, 2.7.2, 3.3, 3.4, 3.5, 9.3, 9.5
Hash storage (of indexes), 5.6.1, 5.6.3, 5.7.2
Help, 2.2.2, 2.4.3, 2.6.1, 7.3.2, Fig. 7.3, 9.4.6
Okapi, 7.5.1, 7.5.3, Figs. 7.6,7,9,10,14,15, Appendix 7
Highlighting, 7.5.3
History of the project, 1.1, 1.3, 4.1
Hyper-Booleans, 6.5, 6.6
Hyper-OR, 6.5, 6.6, 7.4.3, 7.5.2, 8.3.2, 8.5, Appendix 8
Hyphens (treatment of, in index), 5.3.3, 5.4.1, 5.4.3
Index(es), Chapter 5, see also Indexing
access to, 5.6
character coding and filing order in, 5.3.3
construction of, 5.4
contents of, 5.2
corporate and conference names in,see Corporate and conference names
data compression in, 5.6.4
data representation in, 5.6.4
data types in, 5.2.2
definition of, 5.1

Index

Indexdirty, 5.3.1,
display of, 5.3
filing order of, 5.3, 9.4.5
hash(ed), 5.6.1, 5.6.3, 5.7.2
keys, see Keys
keyword, see Keyword index(es)letter-by-letter order, 5.3.3
levels of, 5.6.3
number of, 5.6.5, 5.7.2
numbers in, see Numbers
Okapi, see Okapi index
order of, see filing order of
personal names in, see Personal names
phrase, see Phrase index(es)postings, see Postings
primary, see Okapi primary index
readability of display of, 5.3.2, 5.4.1
retrieval from, 5.6
searching of, 5.6.3
secondary, see Okapi secondary index
sequential, 5.6.1-3, 5.7.2
size (effect on speed of searching), 5.6.3
storage, 5.6
subject headings in, see Subject headings
titles in, see Titles
tree (storage), 5.6.1-3, 5.7.2
types of key, 5.2
updating of, 5.6.1-2, 5.7.2
word-by-word order, 5.3.3
Indexing, Chapter 5, see also Index(es)automatic, 5.4
computational aspects of, 5.6-7
keyword, see Keyword indexing
methods, 5.4
modes of, 5.2
overheads, 5.7.2
phrase, see Phrase indexing
post-coordinate, see Keyword indexing
pre-coordinate, see Phrase indexing
probabilistic, 5.5.1
rules for, 5.4

237

238
sledgehammer approach to, 9.4.1
standard for, 9.4.5
types of, 5.2
typical term extraction procedure (titles), 5.4.3
Information retrieval, see IR
Input from OP AC users, see User(s) inputInterviewing, 8.1.1, 8.2.2, 8.3, 9.4.6, Appendix 6
IR system(s),choice of index structure, 5.6.1
command languages, 7.4.2
comparison with OPACs, 2.2, 7.3, 8.1.2
coverage and source, 2.2.1
users and usability, 2.2.2
for general users, OPAC as prototype, 1.4
for micros, 1.3
front-ended quorum search for, 6.5
indexes for the user, 5.3.1
indexing overheads, 5.7.2
on LANs, 3.2.2, 3.3.2
on mainframes or minis, 3.5
OPAC as an, 2.2.2
stop lists in, 5.5.1
use of software for OPACs, 1.3, 2.4.2
Jargon, 7.3.2, Table 7.1, Figs. 7.2-3
Keyboarding, 8.3.2, 9.4.2, Appendix 5, see also Typing
Keys, 5.2
acronym, 2.4.1, 5.2
coloured, see Coloured keys
derived, 2.4.1, 2.6.1, 5.2, 5.2.3, 5.4.1, 7.3.2
see also Author/title key
in Okapi index, 5.2.3, 5.7.2, Table 5.2
storage of, 5.6.1, 5.6.2, 5.6.4
Keyword (or post-coordinate),
indexes,
automatically produced, 5.3.1
display of, 5.3.1
hyphens in, 5.3.3
indexing, 5.2, 5.4.3
combined with phrase indexing, 2.4.3, 2.7.2
OPACs, 2.4.2, Table 7.1

Index

Indexaccess points, 5.2.1
browsing, 7.3.1
compared with phrase indexed OPACs, 2.4.2, 5.4.3,
7.3.1, Table 7.1, 9.4.2
for subject searching, 2.5.2
pure approach not ideal for, 2.5.2
mispelling causing failure with, 2.6.2
not for specific item searching, 2.5.1
post-coordination of personal names in, 5.3.1, 5.4.1
stop list for, 5.5.1
user interaction, Table 7.1
dialogue aspects, 7.3.2
IR aspects, 7.3.1
with phrase indexing and searching, 2.4.2
without command language, 7.4.2
Known item searching, see Specific item searching
LAN(s), Chapter 3, see also PLAN 4000 and Cluster/One
advantages of, 3.2.2, 3.5
compared with minis, 3.2, 9.3
definition of, 3
design of applications software for, 3.5
difference between them and centralised configuration, 3
disadvantages of, 3.2.3, 3.5, 4.5
file servers, 3, 3.1, 3.3, 3.4, 9.3
in general, 1.1, 3
library automation and, 1.1, 3.5, 9.3
minis compared with, 3.2, 9.3
project, see PLAN 4000, Cluster/One
sources of information on, 3
terminology, 3
types of, 3.1
user stations, 3, 3.3.1, 3.3.3-4
Languages (programming), used for project, 3.5
LCS (Ohio State University OP AC), Fig. 7.1
LCSH, 2.5.2, 4.2, 5.2.1, 5.4.4, 9.4.1
Leading articles, see Articles
Letter-by-letter ordering, 5.3.3
Library automation and LANs, 1.1, 3.5, 9.3
Local area network(s) see LAN(s)LOCAS, 4.1

239

240

Index

Logs, 8.1.1, 8.2, 8.4, 8.5, 9.4.1, 9.4.2, 9.4.6, Appendices 8-9Main entry (concept of), 9.4.5
Maintenance,of LAN, 3.3.1
ofOkapi, 4.8
MARC, Chapter 4, 9.4.5
field selection, 4.2, Appendix 1
fields omitted (in Okapi), 4.3
periodicals and, 9.4.5
record (example), Fig. 4.1
snags, 2.2, 2.4.2, 2.5.2, 4.1, 4.2, 4.3, 5.4.3, 7.3.1, 9.4.5
subfields (used for Okapi), Appendix 2
subject-rich fields, 2.5.2, Appendix 1
tags,
used for Okapi, 4.2, Appendices 1-3001, Appendices 1-3008, Appendices 1-3
082, 5.2.3, Appendices 1-3
083, 5.4.4, Appendices 1-3100, 5.2, 5.4.1, 9.4.5, Appendices 1-3
l l n , 5.4.2, Appendices 1-3
240, Appendices 1-3
245, 4.3, 5.2, 5.4.3, 9.4.5, Appendices 1-3
248, 4.3.1, Appendices 1-3
250, Appendices 1-3
260, Appendices 1-3
440, 5.4.3, Appendices 1-3
490, Appendices 1-3505, 4.3.3, 9.4.5, Appendices 1-3
509, Appendices 1-3
513, 9.4.5
600, 5.4.1, 5.4.4, Appendices 1-3
61n, 5.4.2, 5.4.4, Appendices 1-3
65n, 5.4.4, Appendices 1-3
695, 9.4.5
700, 4.3.1, 5.4.1, 9.4.5, Appendices 1-3
71n, 4.3.1, 5.4.2, 9.4.5, Appendices 1-3
745, 4.3.2
900, 4.3.2, 5.4.1, 5.5.2
M E L V Y L , :U . 2 , 2.4.2, 2.7.1, 5.4.2, 5.5.1, 5.5.2, 5.t

7.4.1
Menus, 7.3.2, 7.4.1, Fig. 7.2, Fig. 7.5

7.3.2,

Index
MeSH, 2.4.4
Messages (Okapi), 7.4.3
Minicomputers compared with LANs, 3.2, 9.3
Multi-meaning message, 7.4.2
Multi-site libraries, 9.3
Names, see Corporate and conference names, Personal names
Nestar, see PLAN 4000, Cluster/One
NOT, 6.6, 6.9
Numbers,
in indexes, 5.2.1, 5.2.2, 5.6.1, 5.6.4, 5.7.2
treatment of, 5.3.2, 5.3.4, 5.4.3
Objectives (of project), 1.1, 1.4, 9.1
Observation of use of OPACs, 8.2.2
Okapi, 8.3, Appendix 7
Okapi,
action in response to user input, 7.5.2
basic approach, 6.9, 7.4
beasts, see Beasts
bibliographic file, Chapter 4capacity, 5.7.2, 9.1
choices (user interaction), 7.5.1
collation sequence, 5.3.4
coloured keys, see Coloured keys
commands, 7.5.1
comments received about, 8.3.2, Appendix 5, Appendix 6
constraints on design, 2.7.2, 5.7.2
decisions (during user interaction), 7.5.2
design, 2.7.2, 5.7, 6.8, 7.4
disc accesses, see Disc accesses
display, 7.5, Figs. 7.5-27
evaluation of, Chapter 8
faults, omissions, limitations, 9.1
authority files, 5.5.2
file updating, 4.8
index, 5.3.4, 5.4.1-3
IR functions not implemented, 6.9
MARC fields omitted, 4.3
reported by students, 8.3.2, Appendix 5
search trees, 7.4.3
stop list, 5.5.1
user interaction, 7.4.3

241Index242

field directory, Appendix 3
fields, Appendix 3
file creation, 4.5, Chapter 4
file inversion, 3.2.3
file size, 4.6
first public appearance of, 1.3
for subject searching, 8.3.2
hardware, see Hardware
history of, 1.1, 1.3, 4.1
importance of, 9.1
index, 5.7, Tables 5.1-4
catalogue drawer analogy, 5.7.4
construction of, 5.7.6
contents of, 5.2.3
corporate names in, 5.4.2, Table 5.2
data compression in, 5.7.4
derived keys in, 5.2.3
Dewey in, 5.2.3
display, 7.5.3, Figs. 7.24-25
displayability of, 5.3.4
experiments, 5.7.4
filing order in, 5.3.4
keys, 5.2.3, Table 5.2
levels of, 5.7.2
overheads, 5.7.2
personal names in, 5.4.1, Table 5.2
primary, see Okapi primary index
record, 5.7.3
secondary, see Okapi secondary index
sizes, 5.7.4, 5.7.5, Table 5.3
subject headings in, 5.4.4, Table 5.2
term record, 5.7.3
titles in, 5.4.3, Table 5.2
truncation of keys in, 5.2.3, 5.4.3
updating, 5.7.2
keyword plus phrase OPAC, 7.4.2, 7.4.3
limitations of, see Okapi, faults
logs, see Logs
messages, 7.4.3
naming of, 1.3
postings, see Postings

Indexprimary index, 5.7.1, 5.7.2, 5.7.4, Tables 5.3-4
programs, see Programs
record, see Record (Okapi)
screens, 7.5, Figs. 7.5-27
search functions, Chapter 6
search trees, see Search trees
secondary index, 5.7.1-4, Tables 5.2-3
software, see Programs
statistics about, 4.6, 5.7, Tables 5.1-4
stop lists, 5.5.1
testing, see Evaluation
user interaction, see User interaction
OPAC(s), Chapter 2, see also under name of OPAC for specific OPACs
access points, 2.4, 5.2.1
adaptive, 7.4.1, 9.4.4
advantages of, 2.3, 2.5.2, 4.1, 9.2
as IR systems, see IR systems
bibliographic files for, see Bibliographic files
compared with conventional catalogues, 2.3, 7.2, 7.3, 8.1, 8.3.2, 9.2,
9.4.2, 9.4.6, Appendix 5
comparisons, 8.1, 9.4.6
components, 2.7.1
definitions of, 2, 2.3
design of, 2.7, 7.3, 9.4, 9.5,
disadvantages of, 2.3, 9.2
ease of use of, 2.3, 2.6, 7.2, 7.4.1, 8.3.2, 9.4.6, 9.5
efficiency of, 9.4.6
evaluation of, see Evaluation
existing, 2.1.1
first generation of, 2.4.1, 2.7.1, 7.3, Table 7.1
generations of, 2.4, 2.7.1, 7.3, Table 7.1
highly interactive, 9.4.4
improved, 9.4.6
indexes, see Index(es) (OPACs)
indexing, see Indexing (OPACs)
input from users, see User(s) input
keyword, see Keyword OPACs
learning to use, 7.2, 7.3.2, 7.4.1, 8.3.2, 9.4.6
multi-site libraries and, 9.3
output, see Display
performance, 8.1.2, 8.2.1

244

Index

phrase indexed, see Phrase indexed OPACs
post-coordinate, see Keyword OPACs
pre-coordinate, see Phrase indexed OPACs
relearning how to use, 7.2, 9.4.6
remote access to, 9.4.5
research, 2.4.4, 9.4, 9.5
second generation of, 2.4.2, 2.7.1, 7.3, Table 7.1
sources of information on, 2.1
speed, 8.3.2, 9.4.6
standardisation of, 9.4.5
third generation of, 2.4.3, 2.6.1, 2.7.1, 7.3, 9.4.4, 9.5
types currently in use, 2.4
use studies, 2.1.2, 2.5, 7.2, 8.1.1, 9.4.1, 9.4.4, 9.4.6
user interaction with, see User interaction
users, see User(s)written sources, 2.1.2
OR, 3.3.2, 6.4-6
Order of records, see Filing order
Output (from OPACs), see Display, and Printed output
Paperchase, 8.2.2, 9.4.6
Partial match, 6.2
PCL, 1.1
catalogue, 4.1, 4.2, Tables 5.1-4, 8.3
library sites, 4.1
Performance (of project LANs), 3.3.2
Periodicals, 8.3.2, 9.4.5
Personal names, Appendices 1-4
display of, 7.5.3
in indexes, 5.3.1, 5.4.1, 5.4.3, Table 5.2
input of, 7.4.3, Fig. 7.12, 8.4.3, Appendix 7
problems with, 4.3.1, 4.3.2, 4.3.4, 6.8, 7.4.2, 7.5.1, 8.4.3, Appendix 7
Phrase indexed (or pre-coordinate) OPACS, 2.4.1, Table 7.1
access points, 5.2.1
advantage of, 9.4.2
browsing, see Browsing
compared with keyword OPACs, 2.4.2, 5.4.3, Table 7.1, 9.4.2
not for subject searching, 2.5.2, Fig. 7.1
pre-coordination,of corporate names, 5.4.2
of personal names, 5.4.1

Indexuser interaction, 7.4.2, Table 7.1
compared with keyword OPACs, 7.3.1
dialogue aspects, 7.3.2
IR aspects, 7.3.1
indexes,
data compression in, 5.6.4
display of, 5.3.1
filing order in, 5.3.3
indexing, 5.2
combined with keyword indexing, 2.4.3, 2.7.2
need for cross referencing, 5.4.2
of titles, 5.4.3
PLAN 4000, 3.3
cost, 3.3.1
performance, 3.3.2
purchase, 1.3
reliability, 3.3.3
technical data, 3.3.4
transfer of data to, 4.5.2
Polytechnic of Central London, see PCL
Post-coordinate index(ing), see Keyword index(ing)Post-coordinate OPACs, see Keyword OPACs
Post-coordination, 5.2
Postings, 5.7.1, 5.7.5
file (Okapi), 5.7.1, 5.7.3, Table 5.3
lists, 5.6.2
number of, to determine display choice, Table 7.3
Precision (how to increase), 9.4.1
Pre-coordinate index(ing), see Phrase indexing
Pre-coordinate OPACs, see Phrase indexed OPACs
Pre-coordination, 5.2
Primary index, see Okapi primary index
Printed output from OPACs, 2.6.3, Appendix 5
Probabilistic indexing, 5.5.1
Problems,
mentioned by users, 8.3.2, Appendix 5with evaluating OPACs, Chapter 8, 9.4.6
with languages, see Foreign languages
with MARC, see MARC snags
with personal names, see Personal names

245

246

Programs, 3.2.3, 3.5, 4.5.1-2, 5.7.6, 8.2.1, 9.4.1 see also Software
Project,
aims, 1.1, 1.4, 9.1
history of, 1.1, 1.3, 4.1
LANs, see PLAN 4000 and Cluster/One
objectives, 1.1, 1.4, 9.1
OPAC, see Okapi
proposal, 1.1
results, Chapter 8, 9.1
staffing, 1.2
success of, 9.1
Proposal(s),for future research, 9.4, 9.5
project, 1.1
Punctuation (treatment of), 5.3.3, 5.4.3
Questionnaires, 8.1.1, 8.2.2, 9.4.6, Appendix 6
Quorum search, see Hyper-OR
Ranked output, 5.5.1, 9.4.1
Readability, 9.4.3
of index displays, 5.3.2, 5.4.1
Recall (how to increase), 9.4.1
Recommendations, 9.4
Record (Okapi),
addresses, 4.4, 5.7.5
content, 4.2-4.4
directory file, 4.5.3
displays, 7.5.3, Figs. 7.26-27
example, Fig. 4.1
format, 4.3.3, 4.4, 4.5.1, Appendix 3
length, 4.6
special characters used in, Appendix 4
Records with analytical entries, 4.3.3, 9.4.5
Redundancy,
in record structure, 4.4
of RETURN key, 7.5.1
Relevance feedback, 2.4.4, 9.4.1
Reliability (of project LANs), 3.3.3
Research, OPAC, 2.4.4, 9.4, 9.5
Response times, 3.2.2, 8.3.2
Results of project, Chapter 8, 9.1

Index

Index247

Scanning, see Browsing
Search, see also Specific item, Subject searches
combinatorial, see Hyper-OR
decision trees, see Search trees
failures, 8.2.3, 8.4.2, 8.4.3, Appendix 6 (Part 3), Appendices 7-8
functions, Chapter 6
not implemented in Okapi, 6.9
patterns, 8.1.2, 8.2.1
results, from the system's viewpoint, 6.2
sequences, Appendix 7
statements, 2.4.4, 9.4.6
processing of, 5.4, 5.5.1
trees, 6.8, Fig. 6.1, 7.4.3, 7.5.2, 8.4.2
types of, 2.5, 5.6.5, 8.4.1, 9.4.6, Appendices 7-8
ways of offering, 7.4.2, Table 7.2
unconditional, 7.4.2
Searches, standard set of, 9.4.6
Searching an index, 5.6.3
Secondary index, see Okapi secondary index
Security, 3.4
Sequence of records, see Filing order
Sequential storage (of indexes), 5.6.1-3, 5.7.2
Serial card, use of, 4.5.2
Software, 3.2.1, 3.2.3, 3.3.1-2, 3.4, 3.5 see also Programs
Source file, see Bibliographic file
Sources of information on,
catalogue research, 2.1.2
evaluation, 8.1.1
LANs, 3
OPACs, 2.1.
user interaction, 7.1
Special characters used in Okapi record, Appendix 4
Specific item,
index, 5.7.2
input, 7.5.1, Figs. 7.8-12
mistakes, 8.4.3, Appendix 7
search(es), Appendices 7-8
beasts used for Okapi, 5.2.3
disguised as subject searches, 2.5
objective of OPAC, 9.2
Okapi, 7.4.2, 7.4.3, 7.5.2, Figs. 7.16-21

248
searching, 2.4.1, 2.5, 2.5.1, 7.3.1
need to minimise typing, 9.4.2
OPAC slower than COM, 2.6.2
stop lists for, 5.5.1
Spelling,
ability, 2.5.1, 2.6.2, 8.2.2, 8.4.3, 9.4.2, Appendix 7
correction, 9.4.2
Staffing of project, 1.2
Statements of responsibility, 4.3.1, 5.4.3, 9.4.5
Statistics,
file, 4.6,
index, 5.7, Tables 5.1-4
Okapi use, Appendix 6 (Part 4)
Stemming, see Truncation of search keys
Stop lists, 5.4.2-4, 5.5, 5.5.1
Storage methods (for indexes), 5.6.1
String comparison, 6.1
String searching, 6.7
Subject,enrichment, 7.3.1, 9.4.5
headings (in indexes), 2.5.2, 5.2.3, 5.3.1, 5.4.4,
Table 5.2
index, 5.7.2, 8.3
input, 7.5.1, Fig. 7.13-15
mistakes, Appendix 7
keys, 5.4.1-4
knowledge, detrimental effect of, 9.4.1-rich MARC fields, 2.5.2, Appendix 1
search(es), Appendices 7-8
beasts used for Okapi, 5.2.3
examination of, in Okapi logs, 8.5, 9.4.1, Appendix 8
example, Fig. 7.1
hidden, 2.5, 7.3
Okapi, 7.4.2, 7.4.3, 7.5.2, Figs. 7.22-23
statements, 9.4.1, 9.4.2, 9.4.6, Appendix 8
searching, 2.4.4, 2.5, 2.5.2, 7.3
corporate names causing false drops in, 5.4.2
enhancement of, 7.2, 8.3.2, 9.4.1, 9.4.2
ordering of displayed results of, 9.4.1, 9.4.5
stop lists for, 5.5.1
Success of project, 9.1

Index

Index249

S u r n a m e key, 5.2.3, 5.4.1, Table 5.2
Sussex University O P A C , 2.1.1, 2.6.1, 5.4.3
S W A L C A P , 1.1,4.1,5.2
Syntax for user input, 7.3.2
T a g s , see M A R C tags
T e m p o r a r y files, 6.6
Term,
extraction example (title), 5.4.3
frequencies, Table 5.1
weighting, 5.5.1, 6.5
Terminals, see L A N user stations, V D T s
Test site, 4.1,8.3
Testing, see Evaluation
Tests (early), 1.3, 3.3.2
Tetragrams (most frequent initial), Table 5.4
T i m i n g out function, 7.5.1
Title only,
input, 7.5.1, Fig. 7.11
mistakes, Appendix 7
search, 7.5.2, Figs. 7.19-20
tree, Fig. 6.1
Titles (in indexes), 5.4.3, Table 5.2
Touch-sensitive screens, 2.6.2, 7.3.2
Transfer of data to P L A N network, 4.5.2
T r e e storage (of indexes), 5.6.1-3, 5.7.2
Truncation,of Dewey n u m b e r s , 5.2.3
of fields in brief records, 7.5.3
of index keys, 5.2.3, 5.3.4, 5.4.3
of search keys, 5.2, 5.4.1, 5.6.2, 5.6.3, 6.4, 5.7.2, 7.4.3, 9.4.1
T y p i n g ability of users, 2.6.2, 7.2, 7.5.1, 8.3.2, Appendix 5
see also Keyboarding
University of California's O P A C , see M E L V Y L
University of Cambridge's O P A C , see Cambridge University O P A C
University of Sussex O P A C , see Sussex University O P A C
Updating, 4.8, 5.6.1-2, 5.7.2
U S catalogue practice (in comparison to U K ) , 2.4.1, 2.5.2
U s e r ( s ) , 2.2.2, 8.3.1, 9.2
attitudes and behaviour of, 2.6.1, 7.2, 8.1.2, 8.2.2, 8.3.2, 9.2, 9.4.4,
9.4.6

Index250

input, 2.6.2, 7.3.2, Table 7.2, 9.4.2, 9.4.6
Okapi, 7.5.1, 8.4.3, Appendix 7
interaction, 2.2.2, 2.4, 2.6, Chapter 7, 9.4.4, 9.4.6, 9.5
design, Chapter 7
dialogue aspects, 7.3.2
IR aspects, 7.3.1
levels of, 7.4.1, Table 7.2
Okapi, 7.4, 7.5
basic approach, 7.4.1
single level, 7.4.1
research, 7.1
sources of information on, 7.1
success of, 8.1.2, 8.2, 8.3.2, 8.3.3
interface, see User interactionneeds, 9.5, Appendix 6 (Part 3)
reactions,to Okapi, 8.3.2, Appendix 5, Appendix 6 (Parts 2 and 4)
to OPACs, 7.2
sessions, 8.2.2
analysis of, 8.4, Appendix 7
demarcation of, 7.5.1, 8.2.1
spelling ability of, see Spellingtypes of, 7.2, 7.4.1, 8.1.2, 8.2.2, 8.3, 9.4.6, Appendix 6 (Part 1)
typing ability of, see Typing ability of users
VDTs,
drawbacks of, 2.6.3, 7.4.3, 7.5.3, 9.4.3, 9.4.4, Appendix 5
number required, 2.6.2, 9.4.2
VDUs, see VDTs
Verbal Feature Heading, see MARC tag 083
Vocabulary (used for user interaction), 7.3.2, Fig. 7.2
Weighted search, 6.5
Weighting (term), 5.5.1
Word-by-word ordering, 5.3.3
Word frequencies, 5.5.1, Table 5.1