Transcript Dissemination, access, & privacy

Dissemination &
access
A convergence of two histories
History of computers (1)
History of computers (2)
Micros
1974-
Charles Babbage
&
Lady Lovelace
Integrated circuits
1966 - 1973
Herman Hollerith
&
1890 census
Transistors
1960 - 1965
Vacuum tubes
1937 - 1959
1800s
…
1930 1940 1950 1960 1970
Database timeline
Write remote location w/ query – 2week turn-around time
Batch-mode
computing
1964 Online
1972 Networks
1975
packet-switched
networks take hold
interactive
1971 NASA Recon ► DIALOG
required long-distance call
1960
1970
1980
1990
2000
Database timeline
Batch-mode
No expert mediation
computing
needed
1964 Online
1972 Networks
1975 End users
1983 CD-ROM
1985 LAN
ERIC locally-mounted;
1990
searched via OPAC ;
Gopher
1960
1970
1980
1990
WWW
1992
2000
Print-based sources advantages
No equipment required
Familiar; little training required
Available any time
Older information available
Library owns the materials
Print-based databases disadvantages
Space
Searching tedious, time consuming
Physical processing required
Each volume separate (must repeat
searches)
Must photocopy references
Patron must come to library to use
Online databases (e.g.
DIALOG) - Advantages
Up-to-date?
Little space required
Pay-for-use
Multiple access points
Online databases (e.g.
DIALOG) - Advantages
(cont'd)
Many databases per host
Volumes cumulated
May merge products
Results can be printed/downloaded
Online databases (e.g.
DIALOG) - disadvantages
Mostly recent information
Requires telephone or Internet
connection
Relies on network
Relies on host
Online databases (e.g.
DIALOG) Disadvantages (cont'd)
Pay-for-use hard to budget
$6.48 Estimated cost File 149
$3.35 Estimated cost File 73
$9.83 Estimated cost this search
Requires training, practice
S SOFTWARE(W)ENGINEERING/TI,DE
Access speed could be slow
CD-ROM - advantages
Fixed price
Patrons like it - "free"
Multiple access points
Volumes cumulated
Available any time library open
Software for end users
CD-ROM - disadvantages
Prices high
May only lease
Multiple disks
May be one user per disk
CD-ROM - disadvantages
Some training & support required
Installation may not be easy because
not standardized
Limited number of products
Not as up-to-date as online
Locally-mounted
databases - advantages
Lease tape or download and load on local OPAC
Widespread access
Cost-effective for high volume
Consistent interface
Locally-mounted
databases - disadvantages
Unsophisticated search engine
on local OPAC
Not as up-to-date as online
Must load updates locally
Web-based remote
databases - advantages
Up-to-date?
Hardware: standard p.c. with
network interface card
Multiple access points
May have multiple databases per
host
Web-based remote
databases - advantages
Volumes cumulated
Results printed or downloaded
Multiple synchronous users
Users familiar with interface
Web-based remote
databases - disadvantages
Prices high
Do not own data
Limited number of products
compared to print
Access dependent on Internet
connectivity
Greater bandwidth needed
Ideal situation
One interface for all databases
User
interface
Locally-mounted
databases
CD-ROM
OPAC
Online
databases
Web-based
databases
Z39.50
One interface for many library catalogs
Library of Congress Z39.50 Gateway
INNOPAC
SirsiDynix
Voyager
Library of Congress Z39.50 Gateway
Brief record
Gone with the wind
TITLE
Library of Congress Z39.50 Gateway
Library of Congress Z39.50 Gateway
Library of Congress Z39.50 Gateway
Adelphi without Z39.50
Library of Congress Z39.50 Gateway
Z39.50
Z39.50
• Each OPAC software package
conforms to set of standards
• Standards are presented in ANSI/NISO
Z39.50-2003
• Allows Z39.50 gateway to present
query to database and database to
respond following protocol both can
understand
• Requests for bids should include
Z39.50 compliance
Using citation and abstract
indexes – the old way
Psychological
abstracts.
BF1 .P65
Stress and Graduate School
Cacaophilia, Candace. 2001. Use
of chocolate by LIS graduate
students to alleviate stress.
Stress and health 17(1):11-99.
Using citation and abstract
indexes – the old way
Stress and
health.
R726.5 .S8
Use of chocolate by LIS graduate
students to alleviate stress
by Cacaophilia, Candace
One hundred twenty-eight LIS graduate
students surveyed reported that …
Using citation and abstract
indexes – with first OPACs
Psychological
abstracts.
BF1 .P65
Stress and Graduate School
Cacaophilia, Candace. 2001. Use
of chocolate by LIS graduate
students to alleviate stress.
Stress and health 17(1):11-99.
Using citation and abstract
indexes – with first OPACs
Stress and
health.
R726.5 .S8
Use of chocolate by LIS graduate
students to alleviate stress
by Cacaophilia, Candace
One hundred twenty-eight LIS graduate
students surveyed reported that …
Using electronic citation and
abstract indexes
PsycINFO
Stress
and
Use of chocolate by LIS
health
Living with stress in school
How
graduate.S8
school drove me
R726.5
Use of chocolate by LIS graduate
students to alleviate stress
by Cacaophilia, Candace
One hundred twenty-eight LIS graduate
students surveyed reported that …
Adding full text databases
EBSCOhost
PsycINFO
Academic
Search Premier
Use of chocolate by LIS …
Living with stress in school
How graduate school drove me
Citation and
abstracts
database
Use of chocolate by LIS …
Use of chocolate by LIS
graduate students to
alleviate stress
by Cacaophilia, Candace
One hundred twenty-eight
LIS graduate students
surveyed reported that …
Partial full-text
database
Adding full text databases
PsycINFO
Use of chocolate by LIS …
Living with stress in school
How graduate school drove me
Citation and
abstracts
database
Question:
Why can’t we
click on citation
and be taken to
the full-text of
the article paid
for by the
library?
How do we get from citation
to full text?
?
doi:10.1300/J104v29n01_02
Digital Object Identifier (DOI)
Title:
LCSH: semantics, syntax and
specificity
Author: Svenonius, E
Source: Cataloging and Classification
Quarterly; 29 (1/2) 2000, p.17-30
DOI: 10.1300/J104v29n01_02
part of a system for identifying
content objects in the digital
environment
Digital Object Identifier (DOI)
Characteristics
• Unique Identification – Denotes one
and only one entity
• Persistence – Denotes the same item
indefinitely (never re-assigned)
• Resolution – DOI serves as input to a
system that returns metadata about
the object, including current location
• Interoperable – Once assigned, DOI
can be utilized in a variety of systems
Digital Object Identifier (DOI)
Title:
LCSH: semantics, syntax and
specificity
Author: Svenonius, E
Source: Cataloging and Classification
Quarterly; 29 (1/2) 2000, p.17-30
DOI: 10.1300/J104v29n01_02
Prefix:
Publisher
Suffix: Identifier
for object
International DOI Foundation (IDF)
http://www.doi.org/
Provides infrastructure and sets rules
for the DOI system.
Resolving a DOI at http://www.doi.org/
10.1300/j104v29n01_02
Resolving a DOI at http://www.doi.org/
Resolving a DOI at http://www.doi.org/
International DOI Foundation (IDF)
Registration Registration Registration Registration
Agency
Agency
Agency
Agency
http://www.crossref.org
http://www.crossref.org
10.1300/j104v29n01_02
10.1300/J104v29n01_02
http://www.crossref.org
Resolving a DOI at http://www.doi.org/
http://www.crossref.org
prefix
Publisher
prefix
Publisher
prefix
Publisher
prefix
Publisher
http://www.crossref.org
DOIs
+
metadata
Publisher
DOIs
+
metadata
Publisher
DOIs
+
metadata
DOIs
+
metadata
Publisher
Publisher
DOI as part of URL
http://dx.doi.org/10.1300/J104v29n01_02
Appropriate copy problem
Publisher
EBSCO
User
UH
Libraries
Web
server
?
?
Full-text
aggregator
?
Full-text
aggregator
Citation
database
?
Full-text
aggregator
CSA
Appropriate copy problem
Access
Publisher
denied
User
UH
Libraries
Web
server
Citation
database
Full-text
aggregator
Full-text
aggregator
Full-text
aggregator
Appropriate copy problem
Link
Resolver
Publisher
User
UH
Libraries
Web
server
Citation
database
Full-text
aggregator
Full-text
aggregator
Full-text
aggregator
Appropriate copy problem
Link
Resolver
2
UH
Knowledge
Base
User
UH
Libraries
Web
server
3
1
Citation
database
Appropriate copy problem
Link
Resolver
OpenURL
1
Citation
database
OpenURL
Three possible parts:
Address of the link resolver
Identifier of resource where user
clicks the OpenURL
Metadata
OpenURL
<http://VD2YN4ULBU.search.serialssolu
tions.com/?atitle=Cultural+Values+and+
Happiness%3A++An+EastWest+Dialogue&volume=141&issue=4&
date=2001&spage=477&aulast=Lu&aufir
st=Luo&issn=00224545&title=The+Journal+of+social+psy
chology>
OpenURL
<http://VD2YN4ULBU.search.serialssolutions.
com/
?atitle=Cultural+Values+and+Happiness%3A
++An+East-West+Dialogue
URL for the
&volume=141
link server
&issue=4
&date=2001
Article title
&spage=477
&aulast=Lu
Author’s last
&aufirst=Luo
name
&issn=0022-4545
&title=The+Journal+of+social+psychology>
Link
resolver