Significant characteristics

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Significant properties by media type

• audio
• presentation files
• raster images
• spreadsheets
• vector images
• video
• word processing files

Definitions

"Significant properties: the characteristics of digital objects that must be preserved over time in order to ensure the continued accessibility, usability, and meaning of the objects, and their capacity to be accepted as evidence of what they purport to record." Significant Properties of Digital Objects, Andrew Wilson, National Archives of Australia, 2008, p. 15

"Significant Properties: Those technical characteristics agreed by the archive or by the collection manager to be most important for preserving the digital object over time." Cedars Guide to: Digital Collection Management, 2002, p. 24

"Significant properties are those aspects of a digital record that must be preserved over time in order for it to remain accessible and meaningful." Framework for the definition of significant properties, Gareth Night, 2008 (Inspect Project document), p. 3

"Transformational Information Property: An Information Property whose preservation is regarded as being necessary but not sufficient to verify that any Non-Reversible Transformation has adequately reserved information content. This could be important as contributing to evidence about Authenticity. Such Information Properties will need to be associated with specific Representation Information, including Semantic Information, to denote how they are encoded and what they mean. (The term ‘significant property’, which has various definitions in the literature, is sometimes used in a way that is consistent with its being a Transformational Information Property)." OAIS Draft Recommended Standard Pink Book, August 2009, p. 1-15

Research

InsPECT: (Investigating the Significant Properties of Electronic Content over Time)

• Framework for the definition of significant properties, Gareth Night, 2008

PLANETS (Preservation and Long-Term Access through Networked Services)

• Significance is in the Eye of the Stakeholder, Angela Dappert and Adam Farquhar (British Library), October, 2009

JISC

• The Significant Properties of Vector Images. Mike Coyne, David Duce, Bob Hopgood, George Mallen, Mike Stapleton 2007
• The Significant Properties of Moving Images, Mike Coyne and Mike Stapleton, 2008
• Significant Properties of e-Learning Objects (SPeLOs), Kevin Ashley, Richard Davis, Ed Pinsent, 2008

Other research

• Data Without Meaning: Establishing the Significant Properties of Digital Research, Gareth Night, Maureen Pennock, The International Journal of Digital Curation, vol. 4, no. 1, 2009
• Document Metadata: Document Technical Metadata for Digital Preservation, Florida Digital Archive and Harvard University Library, 2009