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Metadata and your projects how it all fits together

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Metadata enables the meaningful re-use of the raw data. It allows users to discover, interpret and re-purpose the information to create resources ... – PowerPoint PPT presentation

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Title: Metadata and your projects how it all fits together


1
Metadata and your projects - how it all fits
together
  • Nick Poole
  • ICT Adviser
  • Resource The Council for Museums, Archives and
    Libraries

2
Introduction
  • When to use metadata (and what to use)...
  • Why use metadata?
  • Metadata and your existing information
  • Project example - Crossroads
  • e-Government and metatdata
  • Contact information
  • This presentation available online at
    http//www.peoplesnetwork.gov.uk/team/poole

3
When to use metadata (and what to use)
  • Metadata is involved throughout the digitisation
    process
  • Images
  • NISO Metadata Dictionary for Still Images
  • http//www.niso.org/committees/committee_au.html
  • covers preservation, migration, formatting
  • also RLG Working Group on Preservation Issues
  • http//www.rlg.org/preserv/presmeta.html
  • Resource discovery
  • RSLP Collection Description metadata framework
  • http//www.ukoln.ac.uk/metadata/rslp/
  • Creating learning resources
  • Metadata for Education Group
  • http//www.ukoln.ac.uk/metadata/education/

4
Why use metadata?
  • Good housekeeping
  • Digital preservation
  • Resource discovery
  • Rights management
  • Turning stuff into information

5
Why use metadata - good housekeeping
  • The good news if you keep object records, you
    already use metadata
  • The naming conventions used in your records
    (name/subject, collector, date acquired, location
    etc) relate directly to those required by a
    metadata schema
  • The adoption of a metadata schema enforces a
    standard approach to the way you collect and
    manage this information

6
Why use metadata - digital preservation
  • Metadata preserves the core of important
    contextual information alongside the object
    record itself
  • Metadata enables a structured approach to the
    management and preservation of information
  • Organised metadata provides a meta-collection
    which can be searched and referenced more
    efficiently than the original records themselves

7
Why use metadata - resource discovery
  • Indexed metadata provides a fast and simple means
    of searching across and retrieving large numbers
    of records
  • Standard applications of metadata (eg the RSLP
    CLD/ Dublin Core) enable cross-searching between
    different databases even where different field
    names/ terminologies have been applied
  • Enables the reuse of information to suit
    different priorities
  • Owner/manager - information management
  • User/software agent - locating interpreting
    information
  • Third-party agent - promotion re-use of
    information

8
Why use metadata - rights management
  • Metadata preserves rights information alongside
    the original object record
  • Enables content to be re-used and distributed in
    a way that maintains the link to its original
    creators
  • The RSLP CLD schema preserves not only the
    specific contextual information but also the
    relationship information - for example the
    relationship between an institution, a subject
    collection and a named sub-collection
  • In other words, metadata not only preserves
    information about provenance, but also about
    management and status of the collection

9
Why use metadata - stuff to information
  • Overall, metadata is the bridge between the
    individual object record, and the much wider
    context to which it belongs
  • Metadata enables the meaningful re-use of the raw
    data. It allows users to discover, interpret and
    re-purpose the information to create resources
  • Metadata facilitates the grouping of data into
    meaningful sets of information
  • Metadata also preserves the necessary rights and
    institutional details alongside the re-applied
    information

10
Why use metadata?
  • At a minimum, metadata should conform to
    developing e-Government and UfI metadata
    standards and should be capable of supporting the
    delivery of item-level Dublin Core (DC)
    descriptions of all project resources.
  • - Source, NOF-digitise technical standards (V3.1)

11
Metadata and your existing information
  • There are a number of approaches to metadata
    generation, depending on
  • which stage of information gathering/content
    creation the project has reached
  • the technical architecture of your information
    store
  • the schema, or conceptual architecture of your
    information
  • the requirements of resource discovery, retrieval
    and delivery
  • Options include
  • a proprietary schema that maps directly to RSLP
    CLD field names
  • a rich schema that can be distilled into a simple
    metadata set such as Dublin Core
  • a Content Management System that is able to
    generate metadata dynamically from object records
  • a CMS that is able to generate metadata in XML,
    or a pure XML expression of the dataset

12
Metadata and your existing information
  • There are one-off tools which will distill
    rich information into a simple metadata set
    like Dublin Core
  • These run on a page by page basis
  • For example, the dc.dot tool available either
    as a download or direct from the UKOLN website
  • http//www.ukoln.ac.uk/metadata/dcdot/help/persona
    l.html
  • Or the Metty product from ClickFire at
  • http//www.clickfire.com/freeware/metty/

13
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14
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15
but, this approach is too resource-intensive for
batch-processing of information. Where records
are held in a Content Management System, it is
much easier to generate metadata on the fly.
16
Metadata and Content Management Systems
(with thanks to Pete Johnston for the diagram)
Metadata
Website
Metadata
Resources (held in a CMS)
Metadata
Metadata

In other words, metadata provides the bridge
between user and information in the automated
process of resource discovery.
17
Metadata and Content Management Systems
  • Most current Content Management Systems will
    support the publishing of metadata in a number of
    formats direct from the database
  • It is relatively easy to distil a simple set of
    metatags from the rich environment of a CMS.
  • The important thing is to establish a map between
    your field names and the elements of the relevant
    metadata set
  • Eg..

18
Metadata and Content Management Systems
Record within the CMS..
DC metadata
19
Project example
  • Crossroads project
  • A cross-domain project to enable online access to
    library, museum and archive collections in the
    West Midlands
  • Field/database structure based on the RSLP
    Collections Description Schema
  • CLD revised to suit the purposes of the project
    but retains the core DC.elements to enable
    resource discovery
  • Sample input form and background information now
    available at http//crossroads-wm.org.uk

20
dc.title
dc.identifier
dc.description
dc.coverage
dc.language
And so on. The form is designed using the RSLP
CLD as a basis, which enables it to retain
sufficient granularity to describe the
collections and relationships, but is also
capable of exporting a simplified set of
information based on the DC element set.
21
e-Government and metadata
  • e-Government Interoperability Framework (e-GIF)
    specifies protocols and standards for
    interoperability between public-sector services
    online
  • Full documentation available at
    http//www.govtalk.gov.uk
  • Provides a Government Category List (GCL) now
    published in full, intended for use with the
    Subject element of the e-Government Metadata
    Standard
  • Standard arises from the e-Government Metadata
    Framework. This document specifies the standard
    approach to metadata, including the role of
    Dublin Core, for public-sector bodies
  • NOF -digitise projects will need to familiarise
    themselves with the e-GMF

22
e-Government and metadata
  • UfI (learndirect) implementation standards
  • Specified in NOF-digi technical standards
  • Provide information and guidance of relevance to
    the re-use of your content for lifelong learning
  • Full documentation available at
    http//www.learndirect.co.uk/personal/helpandadvic
    e/suppliers/

23
Contact
  • Nick Poole
  • ICT Adviser
  • Resource The Council for Museums, Archives and
    Libraries
  • 16 Queen Annes Gate
  • London
  • SW1H 9AA
  • Tel 020 7273 1410
  • Email nick.poole_at_resource.gov.uk
  • Web http//www.peoplesnetwork.gov.uk
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