SPEC Kit 338: Library Management of Disciplinary Repositories · 15
books, datasets, slides, video, dissertations, theses,
and reports.
The repositories described in the survey are
very diverse in size, ranging from 38 digital ob-
jects in Resources in Integrated Care for Morbidity
Management and Disability Prevention (RIIC-
4MMDP), which is under development, to 2.8 mil-
lion digital objects in PubMed Central, which is one
of the largest disciplinary repositories in existence
(see Table 2). When reporting the entire collection size
(total records), two repositories have collections under
1,000 records, three repositories have collections be-
tween 1,000 and 10,000 records, and four repositories
have collections between 10,000 and 100,000 records.
AgEcon Search and Industry Studies host only full
text items. All but three repositories reported that
they have records that link to external resources, and
a significant portion of the collections in the tDAR
and HABRI Central repositories are links to external
resources. The definition of collection size varies with
each repository, based on the focus on digital objects
or metadata records.
All of the case study repositories require that meta-
data records include, at a minimum, the elements
title, creator, and date published. Only five require an
identifier element seven require a publisher element.
Other metadata elements required by some of the
repositories include: format, status, refereed, confer-
ence title, location, language, and funding/grant data,
among others (see Table 3).
Table 2. Number of Digital Objects and Metadata Records in Each Repository
Repository Digital Objects Metadata Records Percent of Collection is Full Text
AgEcon Search 66,000 66,000 100%
PubMed Central® 2.8 million over 2.8 million -
HABRI Central 400 17,000 2%
Industry Studies Working Papers 130 130 100%
InterNano 1,003 1,859 54%
The Aphasiology Archive 1,450 1,734 84%
Dryad 3,823 11,077 35%
PhilSci-Archive 3,392 not reported -
RIIC-4MMDP 38 not reported -
Archive of European Integration 27,171 not reported -
tDAR 24,163 390,000 6%
Minority Health and Health Equity Archive 1,000 2,550 39%
Table 3. Metadata Properties Required by Each Repository
Repository Title Creator Identifier Publisher Date Published Other Metadata Fields
AgEcon Search x x x x
PubMed Central® x x x x x
HABRI Central x x x x x
Industry Studies Working Papers x x x x
InterNano x x x x x x
The Aphasiology Archive x x x x x
Dryad x x x x x x
PhilSci x x x
RIIC-4MMDP x x x x x
Archive of European Integration x x x
books, datasets, slides, video, dissertations, theses,
and reports.
The repositories described in the survey are
very diverse in size, ranging from 38 digital ob-
jects in Resources in Integrated Care for Morbidity
Management and Disability Prevention (RIIC-
4MMDP), which is under development, to 2.8 mil-
lion digital objects in PubMed Central, which is one
of the largest disciplinary repositories in existence
(see Table 2). When reporting the entire collection size
(total records), two repositories have collections under
1,000 records, three repositories have collections be-
tween 1,000 and 10,000 records, and four repositories
have collections between 10,000 and 100,000 records.
AgEcon Search and Industry Studies host only full
text items. All but three repositories reported that
they have records that link to external resources, and
a significant portion of the collections in the tDAR
and HABRI Central repositories are links to external
resources. The definition of collection size varies with
each repository, based on the focus on digital objects
or metadata records.
All of the case study repositories require that meta-
data records include, at a minimum, the elements
title, creator, and date published. Only five require an
identifier element seven require a publisher element.
Other metadata elements required by some of the
repositories include: format, status, refereed, confer-
ence title, location, language, and funding/grant data,
among others (see Table 3).
Table 2. Number of Digital Objects and Metadata Records in Each Repository
Repository Digital Objects Metadata Records Percent of Collection is Full Text
AgEcon Search 66,000 66,000 100%
PubMed Central® 2.8 million over 2.8 million -
HABRI Central 400 17,000 2%
Industry Studies Working Papers 130 130 100%
InterNano 1,003 1,859 54%
The Aphasiology Archive 1,450 1,734 84%
Dryad 3,823 11,077 35%
PhilSci-Archive 3,392 not reported -
RIIC-4MMDP 38 not reported -
Archive of European Integration 27,171 not reported -
tDAR 24,163 390,000 6%
Minority Health and Health Equity Archive 1,000 2,550 39%
Table 3. Metadata Properties Required by Each Repository
Repository Title Creator Identifier Publisher Date Published Other Metadata Fields
AgEcon Search x x x x
PubMed Central® x x x x x
HABRI Central x x x x x
Industry Studies Working Papers x x x x
InterNano x x x x x x
The Aphasiology Archive x x x x x
Dryad x x x x x x
PhilSci x x x
RIIC-4MMDP x x x x x
Archive of European Integration x x x