Born digital 3D objects: in

search of an open format

Presentation held at DISH2009 Henk Vanstappen, NAi

0_Contents

• Preservation strategy for born digital

• Preservation formats for 3D CAD models

• Desiminiation formats for 3D models

• Some conclusions

1_Preservation strategy

1_Information level dilemma

• Intellectual content

• Look & feel

• Functionality

• Integrity

• Software

• Hardware

Open formats

Proprietary formats

Emulation

Computer museum

1_Preservation strategy

Best practice:

• Keep original file as is

• Migrate to preservation format(s)

• Migrate to dissemination format

• Preservation metadata

• Safe storage

2_Case: Van Abbemuseum

Ca. 1994

Windows 3.1

AutoCAD

Floppy 3.5

3_Identify formats

• Identify OS / software / format / version

• Pronom database

• DROID

3_Identify formats: DROID

3_Identify formats: Pronom

4_Reading files: AutoCAD 2008

4_Reading files: Rhino

4_Reading files: DWG Viewer

4_Reading files: ArchiCAD

4_Reading files: ArchiCAD

4_Preservation format

• IGES, STEP, DXF, OpenDWG, PDF, PDF/A, X3D,SVG, COLLADA, ...

• Future developments ?

• None supports all features

• None supports all translations

5_Dissemination format

Wishlist:

• Open format

• Browser independent

• No plugins

• High information level

5_Raster image: JPG

5_MPEG

5_DWF in IE

5_DWF in Freewheel

5_DWF in Freewheel

5_Sketchup

5_GoogleEarth

6_Conclusions

• Use multiple preservation standards

• Need for open preservation standard

• Need for open dissemination standard

• Technology watch

• Information loss is inevitable

Digitaliseringsbeleid NAi 25

Questions ?