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The Archival ParadigmThe Genesis and
Rationales of Archival Principles and Practices
The quest for knowledge rather than mere information is
the crux of the study of archives and of the daily work of the archivist.
All the key words applied to archival recordsprovenance, respect
des fonds, context, evolution, inter-relationships, orderimply
a sense of understanding, of "knowledge," rather than the
merely efficient retrieval of names, dates, subjects, or whatever,
all devoid of context, that is "information" (undeniably
useful as this might be for many purposes). Quite simply, archivists
must transcend mere information, and mere information management,
if they wish to search for, and lead others to seek, "knowledge" and
meaning among the records in their care.
Cook (1984)
Archival theory, methodology, and practice together constitute archival
science. Because archival science is scholarly as well as practical
and uses a distinct methodology to gain knowledge, it can be considered
both a discipline and a profession (Livelton 1996). The disciplinary
and professional aspects of archival science together compose the
archival paradigma set of assumptions, principles, and practices
that are common to the archival community and are a model for its
activities and outlook.
Although archives have existed for thousands of years, much of the
archival paradigmnot unlike that of library sciencecoalesced
between the mid-nineteenth and twentieth centuries. Several key treatises
and manuals codifying archival theory and practice were published
between 1830 (when François Guizot, French Minister of Public
Instruction, issued regulations requiring the application of respect
pour les fonds to the records of the départements in
the Archives Nationales) and 1956 (when T. R. Schellenberg, an archivist
at the U.S. National Archives and Records Administration, published Modern
Archives: Principles and Techniques, containing an American delineation
of the archival paradigm). The most influential of these was the Manual
on the Arrangement and Description of Archives, written in 1898
by Dutch archivists Muller, Feith, and Fruin, which brought together
the French and Prussian ideas of respect des fonds and provenance.
The translated manual was widely disseminated and was a major topic
of discussion when librarians and archivists met for the first time
for an international congress at the 1910 World's Fair in Brussels.
As a result, the concept of provenance was adopted by the congress
as the basic rule of the archival profession (Van den Broek 1997).
The archival paradigm has been extensively influenced by the so-called
auxiliary and ancillary disciplinesdiplomatics, history, law,
textual criticism, management and organizational theory, and library
science. Perhaps most influential have been the research methods
of modern scientific history and legal theories of evidence that
developed during the nineteenth century largely from diplomatics.
Diplomatics was developed to help establish the authenticity of medieval
ecclesiastical records. It is the study of the genesis, forms, and
transmission of archival documents; their relation to the facts represented
in them; and their relation to their creator, in order to identify,
evaluate, and communicate their true nature (Duranti 1998a). As a
result of these influences, most of the archival community working
with public records focused on developing principles for archival
arrangement and description that emphasized the organic nature of
records and the circumstances of their creation. The manuscript community
and some national archives, however, adopted bibliographic practices
of subject control (Duranti 1998b). In the United States, where the
archival profession was only just beginning to coalesce, historian
and later archivist Waldo Gifford Leland presented a paper at the
First Conference of Archivists in 1909 calling for the reorganization
of archives according to the principle of provenance rather than
library methods. In a report on the Illinois State Archives, Leland
wrote that an administrative history must be prepared for each office
and that the archives should be classified to reflect the organization
and functions that produced them (Brichford 1982).
The bifurcation of public archives and historical manuscript descriptive
practices in the United States can most easily be explained in terms
of prospective use and archival setting. For archivists administering
records programs within their own institutions, the primary uses
of records were legal proof and administrative research, often conducted
by the records creators. For those engaged in manuscript administration,
the focus was on secondary use by historical scholars, often in a
research library, where there was more pressure to apply bibliographic
models of description (Gilliland-Swetland 1991). Arguably, therefore,
library science has influenced archival science less through the
contribution of specific practices than through the encouragement
of greater emphasis on access and user orientation.
Archivists and the bibliographic community worked together to increase
use and facilitate access to archival and manuscript holdings. In
1983, they developed the machine-readable cataloging (MARC) archival
and manuscripts control (AMC) format to describe their holdings.
Their goal was to integrate standardized information about archival
holdings into bibliographic utilities and online public access catalogs
and encourage wider use of the holdings. Although MARC AMC was widely
adopted by university archivists as well as many state and local
historical repositories, many archivists were not comfortable with
what they perceived to be the forcing of archival descriptive practices
into a data structure that was still essentially bibliographic. In
1993, work began on encoded archival description (EAD), which took
the core archival descriptive toolthe finding aidand
used it to develop a standard generalized mark-up language (SGML)
document type definition. This definition could be used to disseminate
archival descriptive information on the World Wide Web and could
be mapped onto other kinds of descriptive metadata in digital information
resources.
In the United States, where archival practice developed later than
in Europe, a whole new focus on the management of current records
emerged between the 1930s and 1960s. Faced with vast quantities of
modern records generated by two world wars and a huge federal bureaucracy
and with early adoption of new record-keeping and reproduction technologies,
archivists at the National Archives realized that they could not
possibly keep everything. Thus, they developed revolutionary approaches
that engaged archivists at the point of record creation in identifying
active records of long-term value and arranging for the orderly retiring
of inactive records. This development had two important consequences:
the addition to the archival paradigm of a new set of theories relating
to life cycle management of records and appraisal and the establishment
of the records management profession with the founding in 1956 of
the American Records Management Association (now the Association
of Records Managers and Administrators International).
From the 1970s until the early 1990s, the archival community in
the United States hotly debated the extent to which archival principles
and practices were based in theory versus expediency (Burke 1981,
Roberts 1987 and 1990, Stielow 1991). In 1981, F. Gerald Ham said
that technology and a changing social role for archives would lead
to more active management of archival records and a reexamination
of many basic assumptions about archival theory and practice. The
debate gave way to the reexamination, as Ham predicted. Archivists
needed to cope with emerging electronic record-keeping technologies,
new modes of scholarly research (in particular the rise of social
history and postmodern approaches to research), and increasing user
expectations that archivists should provide automated information
access.
The debate first centered on appraisal, the process by which archivists
identify materials of long-term value. Issues discussed were what
and how much to keep and how, in new electronic formats, to identify
records in the often undifferentiated mass of digital information.
Extensive discussion ensued about the need for descriptive standards
developed from the archival perspective and how to reconcile the
different descriptive traditions of the various information professions
as well as within the archival community (Duff and Haworth 1993).
This debate has led to a reformulation and extension of core archival
principles and practices. The archival community has argued that
archival needs exist in wider information systems design and in the
processes of document creation and preservation. It has also considered
what its approaches have to offer in the wider realm of information
management (Taylor 1993b). This is evidenced in a host of recent
developments, discussed later in this report, such as EAD, the SPIRT
Record-keeping Metadata Research Project in Australia, the Functional
Requirements Project at the University of Pittsburgh, the International
Project on Permanent Authentic Records in Electronic Systems (InterPARES)
Project, and the Consortium of University Research Libraries (CURL)
Exemplars in Digital Archives (Cedars) Project in the United Kingdom.
The essential principles supporting the archival perspective are
as follows:
- the sanctity of evidence;
- respect des fonds, provenance, and original order;
- the life cycle of records;
- the organic nature of records; and
- hierarchy in records and their descriptions.
How these principles have evolved with regard to knowledge management
in the digital information environment is discussed below. These
principles reflect the concerns of a profession that is interested
in information as evidence and in the ways in which the context,
form, and interrelationships among materials help users to identify,
trust, interpret, and make relevant decisions about those materials.
The Sanctity of Evidence
History in the true sense depends on the unvarnished evidence,
considering not only what happened, but why it happened, what succeeded,
what went wrong.
Burke (1997)
Many of the information professions interact closely with other
disciplines and derive much of their outlook from those relationships.
For example, the practices and perspectives of information scientists
have been strongly influenced by science and computer science. Archivists
are closely aligned with professions such as law, history, journalism,
anthropology, and archaeology. Evidence in the archival sense can
be defined as the passive ability of documents and objects and their
associated contexts to provide insight into the processes, activities,
and events that led to their creation for legal, historical, archaeological,
and other purposes. The concern for evidence permeates all archival
activities and demands complex approaches to the management of information;
it also sets high benchmarks for information systems and services,
particularly with respect to archival description and preservation.
Recently, the paramount importance of identifying and maintaining
the evidential value of archival materials has been reemphasized,
partly as a result of the challenges posed by electronic records
but partly also to differentiate the information and preservation
practices of the archival community from those of the library community.
The integrity of the evidential value of materials is ensured by
demonstrating an unbroken chain of custody, precisely documenting
the aggregation of archival materials as received from their creator
and integrated with the rest of the archives' holdings of the same
provenance, and tracking all preservation activities associated with
the materials. Jenkinson (1937) described this process as the physical
and moral defense of the record. Schellenberg (1956) expanded archival
notions about evidence when he discussed the values that archivists
should use to help them decide which materials to retain. The primary
values of archival records are related to the legal, fiscal, and
administrative purposes of the records creators; the secondary values
are related to subsequent researchers. Schellenberg (1956) argued
that the secondary values of public records can be ascertained most
easily if they are considered in relation to "(1) the evidence
they contain of the organization and functioning of the Government
body that produced them, and (2) the information they contain on
persons, corporate bodies, things [e.g., places, buildings, physical
objects], problems, conditions, and the like, with which the Government
dealt." His argument acknowledges both the strict legal requirements
of records that must be satisfied by archival processes and the wider
concept of historical and cultural evidence that is contained in
the materials and can be interpreted by secondary users.
The archival concern for the description and preservation of evidence
involves a rich understanding of the implicit and explicit values
of materials at creation and over time. It also involves an acute
awareness of how such values can be diminished or lost when the integrity
of materials is compromised. Evidential value in the widest sense
is reflected to some extent in any information artifact, but only
a subset of all information is subject to legal or regulatory requirements
concerning creation and maintenance. Publications, for example, can
be analyzed for evidence of the motivations and processes associated
with their creation by studying their physical and intellectual form,
examining different editions of the same work, and learning about
the history of the publishing house or printer that produced them.
Primary sources (unpublished or unsynthesized materials) particularly
lend themselves to such kinds of analysis and interpretation, and
such materials are increasingly being incorporated into digital information
resources.
Maintaining the evidential value of information is important not
only to creators of materials that are subject to legal or regulatory
requirements but also to many researchers. In particular, reformatting,
description, and preservation need to be considered. Reformatting
has been discussed extensively in the professional literature in
relation to the digitization of library and archival collections.
Information professionals involved in digitally reformatting their
collections must understand when a user may need to work with the
original information object to appreciate some intrinsic characteristic,
such as the weight of the paper; when a digital copy will do; and
whether a copy needs to be high or low resolution, color or black
and white. Information professionals must also decide how much of
a collection needs to be digitized and what kind of metadata will
enable a user to place information objects in context.
Archival practice places a premium on both collective and contextual
description. The key is to explain the physical aspects and intellectual
structure of the collection that may not be apparent and to provide
enough contextual information for the user to understand the historical
circumstances and organizational processes of the object's creation.
Description should also demonstrate that the physical and the intellectual
form of the materials have not been altered in any undocumented way.
Counterintuitively, perhaps, it is during the preservation of digital
materials that evidential value is often most at risk of being compromised.
Digital preservation techniques have moved beyond a concern for the
longevity of digital media to a concern for the preservation of the
information stored in those media during recurrent migration to new
software and hardware. In the process, many of the intrinsic characteristics
of information objects can disappeardata structures can be
modified and presentation of the object on a computer screen can
be altered.
Respect des Fonds, Provenance, and Original Order
The perfect Archive is ex hypothesi an evidence
which cannot lie to us: we may through laziness or other imperfection
of our own misinterpret its statements or implications, but itself
it makes no attempt to convince us of fact or error, to persuade
or dissuade: it just tells us. That is, it does so always provided
that it has come to us in exactly the state in which its original
creators left it. Here then, is the supreme and most difficult
task of the Archivistto hand on the documents as nearly as
possible in the state in which he received them, without adding or
taking away, physically or morally, anything: to preserve unviolated,
without the possibility of a suspicion of violation, every element
in them, every quality they possessed when they came to him, while
at the same time permitting and facilitating handling and use.
Jenkinson (1944)
This cluster of principles represents the core tenets of archival
theory and practice. Although the tenets are interpreted differently
by different archival traditions, they nevertheless represent the
essence of the archival perspective and its blend of intellectual
and pragmatic rationales.
The principle ofrespect des fonds was first codified in 1839
in regulations issued by the French minister of public instruction.
The principle stated that records should be grouped according to
the nature of the institution that accumulated them. In 1881, the
Prussian State Archives issued more precise regulations on arrangement
that defined Provenienzprinzip, or the principle of provenance.
The principle of provenance has two components: records of the same
provenance should not be mixed with those of a different provenance,
and the archivist should maintain the original order in which the
records were created and kept. The latter is referred to as the principle
of original order in English and Registraturprinzip in German.
The French conception of respect des fonds did not include
the same stricture to maintain original order (referred to in French
as respect de l'ordre intérieure), largely because
French archivists had been applying what was known as the principle
of pertinence and rearranging records according to their subject
content.
The benefits of respect des fonds are self-evident. Originally
conceived of in physical terms, this principle facilitates physical
and intellectual access to records generated and received by the
same institution or person by gathering and describing them as an
intellectual whole, regardless of their form, medium, or volume (Duchein
1983). The principle of provenance enhanced this approach by ensuring
that the records remained as much as possible as they were originally
created. From a practical viewpoint, the principle of original order
obviated the need for resource-intensive and contentious rearrangement
according to subject. From an intellectual viewpoint, it preserved
the objectivity of the records and provided insight into the functions,
processes, and personal relationships of the records creator as reflected
in the arrangement of the records (Gränström 1994,
Schellenberg 1961).
In recent years, the conceptualization of these basic tenets has
become more complex as bureaucratic structures have evolved and digital
systems have been increasingly used for record keeping. Archivists
have had difficulty establishing the provenance of records of multi-institutional
collaborations or those contained in multifunctional databases and
distributed information systems. In archival appraisal, more sophisticated
conceptions of provenance, such as functional provenance and multiprovenance,
have been developed for electronic records that apply business process
analysis and functional decomposition. Functional provenance views
the business function through which a record came into being as that
record's provenance rather than the office or individual creating
the record. This view is based on the rationale that record-keeping
functions are likely to remain more or less constant whereas bureaucratic
hierarchies and technologies shift over time. Multiprovenance recognizes
that a record may be simultaneously created through the interaction
of multiple offices or jurisdictions. In archival description, developments
such as EAD and the Australian series system recognize that a one-to-many
relationship may exist for groups of records created by changing
bureaucratic structures. In the words of Australian archivists Frank
Upward and Sue McKemmish (1994):
The new [post-custodial] discourse has a new language,
and is grounded in a new provenance theory. Structure no longer means
only organisational structure; it can now mean the structures in
which transactions are captured as records, including documentary
forms and record-keeping systems. Context no longer means only record
creators; it can now mean the agents of transactions operating in
the context of their functions and activities. Functions and activities
are no longer defined simply in terms of organisational charts; jurisdictions,
competencies, and operational realities must be considered.
Taken together, respect des fonds, provenance, and original
order ensure that the intellectual integrity of aggregations of records
is maintained and that individual records are always contextualized.
Adhering to these principles is a less resource-intensive way of
providing access to high-volume collections than are classifying
by subject and cataloging of individual documents. Considerable cataloging
expertise and the availability of specialized standardized vocabularies
are required for correct and consistent assignment of subject access
points to heterogeneous unsynthesized and unpublished materials (Michelson
1987). Because the language used in archival materials is often archaic
or technical, assigning a modern subject term that accurately reflects
the concepts being expressed in the records can be difficult. On
the basis of their insight about how users working with historical
and organizational materials might wish to search, archivists have
broadened the notion of subject access, suggesting access points
such as temporal and geographic coverage and form of material (Bearman
and Lytle 1985, Bearman and Sigmond 1987, Roe 1990). Today we can
see the application of such approaches in the resource type and coverage
elements that have been integrated into the Dublin Core for use in
resource discovery of networked electronic resources (Dublin Core
Metadata Initiative 1999).
A huge volume of digital information has not gone through editorial
and publication processes. Subject access and item control practices
are not sufficient for effective and efficient organization of such
information. The archival approach offers the concepts of collective
arrangement and description according to the provenance of the materials;
these provide benefits even when information managers or users are
not interested in the evidential value of the materials. Applying
these concepts makes it possible to unite related digital, nondigital,
and predigital materials according to their intellectual rather than
their physical characteristics. These concepts build context, which
is a powerful and underused tool for facilitating understanding and
ultimately creating knowledge. They prompt the user to consider the
degree to which the material's source is authoritative. The archival
approach focuses on the context, organic development, and content
of the collection, allowing the user to ask the "how," "why," and "so
what" questions so integral to research.
The Life Cycle of Records
If we can become overarching information generalists with
an archival emphasis, we will be able to bring to bear what should
be a deep and thorough knowledge of the documentary life-cycle theory
. . . it may be our most important asset in relation to (I do not
say in competition with) our colleagues, the librarians and other
information specialists.
Taylor (1993a)
The U.S. National Archives and Records Administration developed
the concept of the records life cycle to model how the functions
of, use of, and responsibility for records change as records age
and move from the control of their creator to the physical custody
of the archives. In the first phase of this model, administrators
create and use records (in archival terms, primary use). Records
creators must develop logical systems for classifying or registering
records and implement procedures to ensure the integrity of the records.
Records managers and archivists also ensure that active records are
scheduled for systematic elimination or permanent retention. As records
age, they gradually become less heavily referenced and finally become
inactive. During the second phase, the archives is a neutral third
party responsible for ensuring the long-term integrity of the records.
When the records enter the archives, they are physically and intellectually
integrated with other archival materials of the same provenance,
thus establishing the archival bond (Duranti 1996). Their physical
integrity is ensured through preservation management; their intellectual
integrity, through archival description. Archival records are then
available for secondary use.
Changes in methods of record creation and in perceptions of their
continuing value have recently led archivists to consider how to
apply the life cycle model in a digital environment. The principles
underlying the life cycle have been refined through projects such
as Preservation of the Integrity of Electronic Records, conducted
from 1994 to 1996 by archival researchers at the University of British
Columbia (known as the UBC Project). An alternate modelthe
records continuumhas been proposed. This model now undergirds
the conceptualization of the role and activities of the record-keeping
professions in Australia and is gaining in acceptance in the United
States and Europe.
The UBC Project sought to develop a generic model to identify and
define by-products of electronic information systems and methods
for protecting the integrity of the by-products, which constitute
evidence of action (Duranti and MacNeil 1997). Using a deductive
method drawing on the principles of diplomatics and archival science,
the project identified the procedures necessary to ensure control
over reliable records creation during the first phase of the records
life cycle and to maintain the integrity of archival records during
the second phase. The project reiterates the need in the digital
environment for completed records placed under the jurisdiction of
the archives.
The records continuum model takes a different approach. Records
managers and archivists are involved with records beginning when
a record-keeping system is designed. Physical transfer to the archives
is not required; archivists establish requirements for appropriate
maintenance of the records and monitor compliance by records creators.
The intellectual interrelationships of active and archival records
are established by integrating metadata from active records into
the archival authority's information system (Upward and McKemmish
1994). This postcustodial model expands the role of the archivist
to include active participation in the production and use of records.
The benefits of modeling the life cycle of information materials
extend to information management in general by
- providing for the management of information resources from birth
to death and identifying the points at which responsibilities for
managing those resources change or certain actions must occur;
- integrating the communities responsible for creating, disposing
of, and preserving information resources with those focusing on
the organization and use of information;
- recognizing the motivations of different parties to ensure the
integrity of information materials and points in the life cycle
at which those motivations become less compelling, thus putting
the materials at risk;
- clearly elucidating the process of creating and consuming knowledge
and using it to create new knowledge;
- making it possible to meet different user needs; and
- enabling prediction of levels of use and management of information
storage requirements.
An example of the application of life cycle model in a nonarchival
digital information framework is the Information Life Cycle model,
developed at the 1996 National Science Foundation Workshop on the
Social Aspects of Digital Libraries at the University of California,
Los Angeles. This model (see figure 2) represents the flow of information
in a given social system. It emphasizes the technologically based
information storage and retrieval aspects of a digital library as
well as the belief that digital libraries should be constructed to
accommodate the actual tasks and activities involved in creating,
seeking, and using information resources (Borgman et al. 1996).
The Organic Nature of Records
Records that are the product of organic activity have
a value that derives from the way they were produced. Since they
were created in consequence of the actions to which they relate,
they often contain an unconscious and therefore impartial record
of the action. Thus the evidence they contain of the actions they
record has a peculiar value. It is the quality of this evidence that
is our concern here. Records, however, also have a value for the
evidence they contain of the actions that resulted in their production.
It is the content of the evidence that is our concern here.
Schellenberg (1961)
The practices of many information communities focus on the best
and most cost-effective ways to organize and retrieve discrete information
objects. Archival practice assumes that materials within a fond can
be most effectively organized and retrieved collectively. Although
collective management and description are pragmatic ways to gain
basic levels of control over large quantities of heterogeneous information,
for archivists the rationale behind these practices lies in the inherent
characteristics of records and other materials that are the by-product
of human activities. When materials are generated by the activity
of an individual or organization, an interdependent relationship
exists between the materials and their creator. A complex web of
relationships also exists between the materials and the historical,
legal, and procedural contexts of their development as well as among
all materials created by the same activity. The organic nature of
records refers to all these interrelationships, and archival practices
are designed to collectively document, capture, and exploit them.
These practices recognize that the value of an individual record
is derived in part from the sequence of records within which it is
located. They also recognize that it can be difficult to understand
an individual record without understanding its historical, legal,
procedural, and documentary context.
The perspective gained from working with information collectively
can also be applied to the description, preservation, and use of
Web resources. Resources created on the Web are not unlike archival fonds in
that they include a complex of hyperlinks to pages related by provenance,
topic, or some other feature. An advantage in the Web environment
is that hyperlinks are explicit rather than largely implicit, as
is the case with paper records. As a result, those who manage and
use these resources can more easily identify and exploit organic
relationships. A Web page without its hyperlinks may be less valuable
to users because of its diminished evidential content.
Fig. 2. Model of the life cycle of information
in digital libraries (UCLA-NSF Workshop 1995)
Hierarchy in Records and Their Descriptions
Recent developments in information organization have exploited the
structure of information content and its metadata to provide smarter
access to materials, especially those that are hard to locate by
subject or keyword. This is particularly evident in efforts to apply
extensible mark-up language (XML) to develop structures that are
more predictable for Web resources and in the application of the
text encoding initiative for the SGML encoding of literary and historical
texts.
Structure can be both intellectual and physical; it can exist within
an information object, collections of information objects, and descriptions
of those information objects. Archival practices explicitly recognize
the existence of such structures and exploit those that are hierarchical.
Developing and using hierarchies are intuitive ways for humans to
model information; as a result, much information and many information
systems have hierarchical characteristics.
To ascertain authenticity, archivists use principles derived from
diplomatics to analyze how the intellectual form of records reflects
the functions by which they were created. Diplomatics maintains that
the intellectual form of records usually has three componentsprotocol,
text, and eschatocol. Each of these components contains groups of
additional elements of form; for example, the protocol contains elements
such as the name of the author, the date the record was created,
the name of the person to whom the record is directed, and the subject
of the record. The eschatocol contains elements that validate the
document, such as the official title of the author and signatures
of witnesses and countersigners. When elements are absent or irregular,
the records' authenticity may be questioned (Duranti 1998a).
Records have an innate hierarchy imposed by the creating agency's
filing practices and position in a bureaucratic hierarchy and by
the processes through which the records were created. A fond may
contain sous-fonds or a record group may contain subgroups,
which may in turn contain many series of records, each relating to
a different activity. Individual record series may be divided into
subseries and even subsubseries, which may be further divided into
filing units that contain individual documents.
Archival description, through inventories and registers collectively
referred to as finding aids, has traditionally reflected these hierarchies.
A high-level summary description provides basic intellectual control
and collection management information for a set of records; progressively
more granular descriptions are prepared for subordinate levels in
the hierarchy. There are four advantages to this approach:
- It documents all the records of the same provenance, their arrangement,
and the chain of custody that brought them into archival control.
- It permits economies in description. Collective description is
less expensive than item-level description; this approach enables
archivists to decide how far down in the hierarchy detailed description
is needed on the basis of the values exhibited by the materials
and the anticipated level and nature of use.
- For many kinds of historical and bureaucratic uses, this description
mirrors the arrangement of the records and provides a logical way
to search for materials.
- This approach can be applied regardless of the nature of a collection
and does not require specialized description for special forms
of materials.
In the digital environment, hierarchical and collective description
lend themselves to hierarchical and object-oriented metadata structures
such as SGML. The development since 1995 of the SGML document type
definition for EAD has turned descriptive practices that may have
seemed cumbersome into a powerful infrastructure for online information
systems. A data structure standard for preparing encoded digital
finding aids, EAD permits a collection to be searched at different
levels of description and links to be built to descriptions of organically
related materials or digitized versions of the materials. Figure
3 indicates the high-level model of the EAD document type definition
and shows how the encoded finding aid has been broken into three
major intellectual components:
- eadheader, which provides bibliographic and descriptive
information about the encoded finding aid;
- frontmatter, which contains prefatory information
about the creation, publication, or use of the finding aid; and
- archdesc, which describes the content, context, and extent
of the archival materials being described.
Each component contains a hierarchy of nested elements, the most
complex of which is archdesc. As indicated in the high-level
model, archdesc contains many elements, each of which is also
available for use at lower levels in the hierarchy. The LEVEL attribute
indicates the level at which the element is occurring within the
descriptive hierarchy. The tag for description of subordinate components
(<dsc>) indicates how components at each level are further
subdivided. Up to 12 numbered or unnumbered components can be nested
within each <dsc> (Society of American Archivists Encoded Archival
Description Working Group 1998 and 1999).
Fig. 3. High-level model for the encoded archival
description document type definition (Society of American Archivists
Encoded Archival Description Working Group 1999)
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