day 1, papers 1, dish2009 vanstappen
TRANSCRIPT
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Born digital 3D objects: in
search of an open format
Presentation held at DISH2009 Henk Vanstappen, NAi
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0_Contents
• Preservation strategy for born digital
• Preservation formats for 3D CAD models
• Desiminiation formats for 3D models
• Some conclusions
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1_Preservation strategy
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1_Information level dilemma
• Intellectual content
• Look & feel
• Functionality
• Integrity
• Software
• Hardware
Open formats
Proprietary formats
Emulation
Computer museum
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1_Preservation strategy
Best practice:
• Keep original file as is
• Migrate to preservation format(s)
• Migrate to dissemination format
• Preservation metadata
• Safe storage
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2_Case: Van Abbemuseum
Ca. 1994
Windows 3.1
AutoCAD
Floppy 3.5
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3_Identify formats
• Identify OS / software / format / version
• Pronom database
• DROID
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3_Identify formats: DROID
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3_Identify formats: Pronom
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4_Reading files: AutoCAD 2008
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4_Reading files: Rhino
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4_Reading files: DWG Viewer
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4_Reading files: ArchiCAD
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4_Reading files: ArchiCAD
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4_Preservation format
• IGES, STEP, DXF, OpenDWG, PDF, PDF/A, X3D,SVG, COLLADA, ...
• Future developments ?
• None supports all features
• None supports all translations
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5_Dissemination format
Wishlist:
• Open format
• Browser independent
• No plugins
• High information level
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5_Raster image: JPG
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5_MPEG
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5_DWF in IE
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5_DWF in Freewheel
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5_DWF in Freewheel
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5_Sketchup
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5_GoogleEarth
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6_Conclusions
• Use multiple preservation standards
• Need for open preservation standard
• Need for open dissemination standard
• Technology watch
• Information loss is inevitable
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Digitaliseringsbeleid NAi 25
Questions ?