Natalia Wehler HS 'Digital Libraries' Standards in Digital Preservation Summary of Delos Summer School 2005 see last pages for details on lecturers Summary.
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Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Summary of Presentations of DELOS Summer School 2005
'Unpacking The OAIS Model' by David Giaretta'Categories, Uses and Challenges of Metadata and Process Documentation' by Michael Day'Workflow and Workflow Modelling' by Stephan Heuscher'Role of Registries and Representation Information' by David Giaretta
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
OAIS - Denotation
Open Archive Information System where
open = model standard developed using a public process and are publicly available
information = knowledge that can be exchanged, independent of form (representation)
archival information system = men and machines responsible for the acquisition, preservation and dissemination of information
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - History
The Consultative Committee for Space Data developed several discipline-independend standards
basis for TC20 (aircraft and space vehicles) and SC13 (data and information transfer)
general problem: information leakage through time
decided that SC13 should become archival standard
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Background I
How to achieve such an archival standard? development of framework for digital archive
standards development of 'Reference Model' ensure participation (across disciplines, apart
from space communities) focus on digital formats (but keep traditional
archiving in mind)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
General Definition: Archive
a structured collection of documents, certificates, files, records
orientation: long term preservation access for public
not focused on the needs of the users (in contrast to a library)
a library (institution) sometimes fulfills the functions of an archive
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
General Definition: Reference Model
a referece model is the basis for the development of special models
and the construction of special applications
the comparison between models which describe the same issues
a reference model represents the ideal abstract key concepts
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
General Definition: Framework
a framework defines the architecture of an application or a process
a framework defines the structures and the control flow
it functions as a model it helps to understand the relationship among
the entities of a system an important goal of a framework is to
create/use reusable patterns/modules
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Background II
How to develop a standard? investigation of other standards definition of archiving of data break archiving into functional areas e.g.
ingest, storage, access define interface between functional areas use formal specification tools like UML, (data
classes) data flow diagrams (interfaces) etc.
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
General Definition: Ingest
the acquisition of digital objects for a repository
has to identify and record the appropriate semantic and syntactic properties of the object
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
General Definition: UML
Unified Modeling Language a standardised language to describe and
specify structures of systems not only used in software engineering, but also
to model business processes
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Background IV
How is the status of the standard? widely accepted not only by digital libraries,
archives but also commercial organisations ISO 14721 and final CCSDS available
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model -Environment
How does the model view of the OAIS environment look like?
producers provide information to be preserved
managers set OAIS policy as one concept in a broader policy domain (????)
consumers find and acquire digital information
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model -Responsibilities
Which responsibilities does the OAIS have? negotiate for appropriate information of producers control information conscerning long term preservation ensure that the information is independently
understandable follow documented policies and procedures determine the addressee of the information make the information available
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model-Information Terminology
information represented by data if the data object is interpreted with the help of
representation information, the information object is accessible
an information package is a conceptual unit consisting of content information and preservation description information (PDI)
types of information: rendered non-rendered others
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Information Object (UML)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Representation Information (UML)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Information Types (UML)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Content Information
(primary) object of preservation needs to be negotiated between producer and
OAIS The data object in the content information can
be digital physical
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Descriptive Information
contain the data which allow access to a document
can be used by the consumer e.g. to analyse or retrieve information
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model -Packaging Information
relates the components of the package into identifiable entity of media data
e.g. tape marks, file names
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model -Archival Information Package
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Preservation Description Information
Provenance Information description of Content information source e.g.
pointers to the original, pointers to earlier versions Context Information
description of relations outside the Information Package e.g. pointers to documents from the original environment of the publication
Reference Information unique identifier e.g. bibliographic identifier
Fixity Information protection of alteration e.g. by checksum, digital
signature
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Types of Information Packages
Submission Information Packages (SIP)information submitted by producer (based on negotiations between producer and OAIS)
Archival Information Package (AIP)used for preservation
Dissemination Information Package (DIP)distribution of information of one or more AIPs to the consumer using the OAIS
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Functional View I
Principles: Stress on major functional areas important
to digital archiving Use of functional decomposition, but not too
detailed Identification of common services
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Functional View II
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Functional Entities
Ingest accepts SIPs prepares content for storage
Archival Storage provides services and functions for storage
Data Management provides services and functions maintaining descriptive
information and internal archive administration data Administration
manages the overall operation of the archive Preservation Planning
monitors environment of the OAIS provides recommendations
Access allows the consumers to access the information content of the
OAIS as a product
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Digital Migration
Migration of digital information within the OAIS in order to preserve it
full information content replacement of old information
implemetation motivated by:
media decay cost effectiveness new customer requirements
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Types of Digital Migration
Refreshment no bit changes
Replication no change of packaging or content information
bits Repackaging
some bits change in packaging information Transformation
reversible: bit changes can be reversed by an algorithm
irreversible
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Problems of Access Presevation
cost effective use of APIs only possible if not too complicated applicable on many different AIUs (Archive Information
Unit) extensive testing necessary when porting API to a new
environment preservation through emulation of executables problematic
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model - Archive Interoperability
need for interoperability among the different archives consumers need common aids, common DIP, common
package descriptor for access producers need common SIP, one single repository managers need cost reduction by sharing resources
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model -Categories Archive Interoperability
independent: no knowledge from one archive to another
cooperating common submission and dissemination standards no common access
federated common access provided
shared resources resources shared but not externally visible (e.g. shared
storage)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
The OAIS Model-Possible Architecture
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Metadata - Definitions
Data about data Structured information to describe, explain,
locate ... information objects Definition by function
Descriptive metadata Structural metadata Administrative metadata
understandable by men and machines many different standards
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Preservation Metadata - Definitions
Types of data that allow the re-creation and interpretation of structure and content of digital data over time (Ludäsher, Marciano, Moore, 2001)
The information used by an repository to support the digital preservation process (PREMIS working group, 2005)
All digital preservation strategies depend on the creation of appropriate metadata
Preserving the right metadata is the key to preservation (Duff, Hofmann, Troemel, 2003)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Preservation Metadata - Roles
reference to each digital object provides structural, descriptive, administrative
... information understanding the history of data (how it was
cleaned, what parameters were used) handling of huge amount of data
(searchability)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
PREMIS WG - About
Preservation Metadata Implementation Strategies sponsored by OCLC (Online Computer Library Center)
and RLG (Research Libraries Group) since 2003 international WG main objectives:
a basic set of preservation metadata ("Data Dictionary")
strategies for encoding, packaging, storing, exchanging metadata
output: Implementation Survey Report (2004) PREMIS Data Dictionary (2005)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
PREMIS WG - Observations
little experience of digital preservation: will metadata be adequate
the OAIS model was the basis for many repositories METS was the most common scheme for non descriptive
metadata metadata is stored together with data objects (self-
documenting) and in data bases
Trends keep originals to limit the risk use of multiple preservation strategies
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
PREMIS WG - Data Dictionary
based on OAIS framework a set of implementable semantic units defines metadata that maintains iability, renderability,
understandability, authenticity and identity in a preservation context
not focused on descriptive metadata metadata set for the needs of repositories automatic capture of metadata the Data Dictionary implementation is independent
(does not determine how s.th. is stored) everything is based on a simple data model
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
PREMIS WG - Data Model
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
PREMIS WG - Data Model - Definitions I
Entities Digital Object Interlectual Entity (considered to be covered by existing
standards) Event Agent Rights
Relationships statements of association between instances of entities
structural relationships derivation relationships dependency relationships
Semantic Units properties of one entity have values
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
PREMIS WG - Data Model - Definitions II
Digital Objects discrete unit of information
files = named and ordered sequence of bytes known by an operating system
bitstreams = a set of bits embedded within a file representation = the set of files needed for the
rendering of an Interlectual Entity Interlectual Entity
a coherent set of content that can be viewd as a single unit Event
an action involving at least one object or agent of the repository
objects can be connected to several actions
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
PREMIS WG - Limits
no focus on descriptive metadata no definition of the characteristics of an agent no consideration of rights, which are not directly associated
with preservation actions (e.g. access) no definition of all technical metadata no documentation of media or hardware no consideration of the business rules of a repository
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
PREMIS WG - Metadata Capture
capture metadata which already exists develop tools for automatic capture of metadata create event metadata at different points of the object life
cycle (creation, ingest, migration
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
PREMIS WG - Interoperability
important to support reuse of existing metadata to exchange digital objects centralised repositories specialised on file format information
and metadata schemas
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Definition
a specific representation of a process represents activities, applications and participants (humans or
machines) represents the structure of tasks, who performs a task, the
synchronisation of tasks controlled by a workflow management system can be graphically depict by workflow diagrams
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - What for?
Traceability of processes, documentation of handling quality control tool for automated processes Knowledge sharing, important for
centralised implementation iterative development
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow and Preservation
workflows mainly for arrangement purpose implicit knowledge local differences no standards very adaptive only a small number of archives: no out of the box solutions
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Advantages/Disadvantages
Disadvantages costs complexity more surveillance too many tools and standards
Advantages documentation automation more control sharing knowledge connecting applications
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Lifecycle
Planning requirements analyses defining goals
Implementation design workflow on basis of requirement analyses evaluate tools
Enactment Evaluation Planning... (based on evaluation results)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Routing
Routing: what to do next? manifestation of control flow definition of sequence routing needs to be defined in dependeny of the outcome of
an action
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Activities
clearly identifiable units of work always completed Hierarchy (there may be subworkflows)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Data
activity data input and output data files, databases
routing data outcome of routing evaluated for branching
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Design
define requirements, goals textual decription of wat should happen abstraction visualisation and formalisation
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Symbols
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Example
missing: error handling data flow details
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Example
Swim lane
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow - Digital Preservation Specials
Formal Semantics textual definitions change meaning in time
Flexibility changes in workflow during time new technologies should not require a new modeling
Decomposition horizontal and vertical (details) reusability parallel development
Simplicity understandable, not misinterpretable, better acceptance
Stability backwards compatibility, active development (future)
Traceability possibility to relive a workflow basic requirement for authentic digital objects
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow and the OAIS RM
OAIS RM standard for digital archives and framework for terminology, responsibilities, functional entities, logical data models
OAIS RM defines sevreal workflows mainly data flows serve as guideline
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Workflow and the OAIS RM - Example
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Representation Information I
a data object is interpreted using the representation information (remember OAIS)
representation information is information that maps a data object into a more meaningful concept
for example: ASCII definition describes how a sequence of bits is mapped into a symbol
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Structures of Formats
Formats used for rendering, inspected by humans
Formats for automated processes Formats with unknown structure need a
software to interprete proprietary formats like MS Word Open Source software
Formats with known structure e.g. ASCII file
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Formats - OAIS Layer Model
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Semantics
meaning and relationships cause a hard problem
start with Data Dictionaries? add RDF (Resource Description Framework)?
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Definition RDF
Resource Description Framework specification idea: making statements about resources in the form
of subject - predicate - object subject of an RDF statement is a resource e.g.
addressed by an URI (Unified Resource Identifier)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Information over the time
datasets changes over the time state may be important
take a snapshot of each moment in time and store it?
might result in a series of snapshots, additional representation information necessary (e.g. link from one snapshot to another)
annotations need to be stored (Why did they do it the way they did?)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Time Dependend Systems
there are time dependent systems, e.g. data bases
an implicit or explicit process might be associated
Emulation UVC (Universal Virtual Computer) JVM (Java Virtual Machine)
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Questions
"Is saying 'It is XML' enough?" Does every archive need to do/store
everything?
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Registries - About
a place to register a place to look up Example:
http://metadata.net/registries.html http://hul.harvard.edu/gdfr
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Registry - Representation Information Labels I
digital object has an identifier pointing to representation information (Representation Information Label)
a data object is associated with one or more labels the label can have structure itself (it is itself a digital
object) on basis of the label the repository returns the
representation information registry needs to be searchable 'people' need to look up, whether representation
information is already in the registry
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Registry - Representation Information Labels II
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Registry - Representation Information Labels III
Structure of Representation Information Labels: http://dev.dcc.ac.uk/twiki/bin/view/Main/DCC
ApproachToCuration
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Registry Access Solutions
Interface and protocols : JAXR can communicate with UDDI and ebXML FreebXML implementation
many access methods
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
JAXR - Definition
Java API for XML Registries provides a uniform and standard Java API for
accessing different kinds of XML Registries.
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
UDDI - Definition
Universal Description, Discovery and Integration
functions like a registry implemented using some kind of database companies or organisations may register their
services possibility to search for the service
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
ebXML I
Electronic Business Extended Markup Language
a set of specifications forming a modular electronic business framework
to conduct business with each other through the exchange of XML-based messages
ebXML uses a repository to store the information for international access
FreebXML offers sharing of free ebXML code
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
ebXML II
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Persistent IDs
Need of persistent Ids Findability Which one to use?
DOI URN ARK PURL
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Trusted Repositories
authenticity of representation information access control certification shared effort extensibility a format registry is not enough need of certification
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Lecturers and Presentations of Delos Summer School I
Birte Christensen-Dalsgaard Head of Development at the State and University Library in Aarhus
Michael Day Research and Development team at UKOLN.
David Giaretta Associate Director for Development at the UK Digital Curation Centre.
Mariella Guercio, professor in archival science and electronic record management, ISTBAL, Università degli Studi di Urbino.
Ross Harvey inaugural Professor of Library and Information Management at Charles Sturt University’s School of Information Studies.
Stephan Heuscher, co-founder ikeep AG (Digital Archives Services).
Natalia WehlerHS 'Digital Libraries'
Standards in Digital PreservationSummary of Delos Summer School 2005see last pages for details on lecturers
Lecturers and Presentations of Delos Summer School II
Hans Hofman, co-director of ERPANET and senior advisor at the Nationaal Archief (National Archives) of the Netherlands.
Anne R. Kenney, Associate University Librarian for Instruction, Research, and Information Services at Cornell University Library.
Seamus Ross, Professor of Humanities Informatics and Digital Curation, and Director HATII (Humanities Advanced Technology and Information Institute) , University of Glasgow.
Andreas Rauber, Associate Professor at the Department of Software Technology and Interactive Systems at the Vienna University of Technology.
Manfred Thaller Professor of Historisch-Kulturwissenschaftliche Informationsverarbeitung, University of Cologne
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