Summary notes of the session: PowerPoint / PDF

Reviewing types of metadata

Type of Metadata
Function Supported
Metadata Property (element)
Descriptive metadata
Resource discovery; Selection; Access
*Creator; Title; Subject
Preservation metadata
Resource management
Resolution; Density; Fixity
Provenance metadata
Lifecycle management; Authentication
*Creator; Date created; Date modified
Contextual metadata
Awareness; Comprehension; Interpretation
Date created; Temporal data; Arrangement
(placement of an object in relation to other objects)
Technical metadata
Use; Access
System requirements; Format
Rights management metadata
Access; Reproduction; Use/re-use
(Greenberg, 2009)

Testing the use of metadata

  • Organic.Edunet Web Portal:
    Organic.Edunet is a learning portal that provides access to digital learning resources on Organic Agriculture and Agroecology and aims to facilitate access, usage and exploitation of such content. Learning resources published are appropriate for school and university level, thus targeting pupils, students, teachers and researchers, apart from general learners.
  • VOA3R: Virtual Open Access Agriculture & Aquaculture Repository: Sharing Scientific and Scholarly Research related to Agriculture, Food, and Environment (beta-repository)
    Open access to scientific/scholarly content removes the access barriers related to copyright retention to the outcomes of research. Several for-profit and non-profit cases have demonstrated their sustainability in this endeavour to date. The VOA3R platform aims at re-using existing and mature metadata and semantics technology to deploy an advanced, community-focused integrated service for the retrieval of relevant open content and data that includes explicit models of the scholarly methods and procedures used and of the practical tasks targeted by applied research (which represent a principal information need expression for practitioners). The service will enable researchers to formulate their information needs in terms of elements of the scientific methods established in their field (variables, techniques, assessment methods, kinds of objects of interest, etc.) combined with topical descriptions as expressed in metadata. The community approach will enable the enhancement of information seeking with extended evaluation elements (as for example, ratings, public reviews, social tagging and links to supporting or conflicting reports) that complement and go beyond the traditional, anonymous peer review process which results are not made available openly. (project description at the European Commission > Information Society)

Learning more about metadata

Use of metadata on the ILRI website


Knowledge organization systems (KOS)

(Ushold & Gruninger, 2004)