This is not a test:Preserving AutoCAD Files            at           The  University of Montana          Sam MeisterMaureen...
Context
Acquisition                         Accession            Born-Digital WorkflowDiscovery                       Arrangement ...
Digital PreservationAcquisition               Accession       Born-Digital WorkflowDiscovery                Arrangement   ...
Paper drawings = known entity
AutoCAD files = unknown entity
Acquisition Process     Donor Survey Feasibility Assessment  Transfer Agreement
Donor survey
Feasibility Assessment      Do we have resources to feasibly acquire, preserve,         and provide access to the digital ...
Accession Process  Disk	  Image	  Donor	  Hard	               Drive	   Package	  Disk	  Image	  and	       Documenta5on	  ...
[disk image]
AutoCAD Files?
AutoCAD Drawings - Characteristics            Proprietary          Undocumented*           2D drawings        3D models (s...
AutoCAD Drawings - Formats.dwg   Drawing       •  Vector file       •  Interoperable with other major CAD          softwar...
Best Practices   StandardsRecommendations
FACADEFuture-proofing Architectural  Computer-Aided Design       MIT Libraries        2006-2009
FACADE             CAD is Problematic                 Highly volatile Relies on proprietary mathematical algorithmsPackage...
FACADE – Recommendations           Preservation Strategy        Generate derivative versionswith greater long-term preserv...
FACADE – RecommendationsOriginal = originally submitted version of CAD modelDisplay = easily viewable format for presentat...
IFC ?STEP ?IGES ?
IFC =   Industry Foundation ClassesSTEP =   Standard for Exchange of Product              Model Data  IGES =    Initial Gr...
FACADE – Recommendations     AutoCAD Files     Original = AutoCAD DWG     Display = DWF PDF                  ,     Standar...
FACADE – Recommendations    Emulation is “a viable technical approach forpreserving modern CAD software and data, but the ...
Digital Archive for Architecture System                (DAArch)          Art Institute Chicago              2003 – 2007
DAArch – Recommendations            Preservation Strategy1. Bit-stream preservation of native CAD files2. Generate derivat...
AHDS Preservation Handbook  Computer Aided Design          2005
AHDS – Recommendations  Suitable Preservation Formats:             DXF            IGES            STEP
Digital Preservation Coalition WorkshopDesigned to Last: Preserving Computer Aided Design                        2010     ...
DPC Workshop – Recommendations We need an open preservation format standard
FUTURE:DPC Technology Watch Paper  Computer Aided Design         Alex Ball           2013
Smithsonian Institution Archives         2010-2011
Smithsonian – Recommendations     Convert 2D drawings to PDF/E
Recommendations           1. Keep original native formats              2. Generate PDF format3. Generate industry standard...
Local Strategies
Local Strategies MIGRATION" EMULATION"
MIGRATION"
MIGRATION"DWG	                              PDF/E	            with Adobe Acrobat Pro                TESTED
[PDF drawing]
MIGRATION"DWG	                     PDF/E	            with AutoCAD*          NOT TESTED
MIGRATION"DWG	                     DXF	            with AutoCAD*          NOT TESTED
MIGRATION"DWG	                     IGES	            with AutoCAD*          NOT TESTED
*AutoCAD may not be only   option for migration
EMULATION"        Donor	  Hard	  Drive	  	  with VMWare / QEMU / KEEP     NOT TESTED
Next StepsTest and determine feasibility of additionalmigration strategiesTest and determine feasibility of emulationstrat...
Big Picture / Conclusion
ReferencesAIMS Work Group. 2012. AIMS Born-Digital Collections: An Inter-Institutional   Model for Stewardship.   http://w...
ReferencesDesigned to Last: Preserving Computer-Aided Design. Retrieved December    20, 2012 from http://www.dpconline.org...
Thank       You!      Sam Meistersam.meister@mso.umt.edu    @samalanmeister
This is not a test: Preserving AutoCAD files at The University of Montana
This is not a test: Preserving AutoCAD files at The University of Montana
This is not a test: Preserving AutoCAD files at The University of Montana
This is not a test: Preserving AutoCAD files at The University of Montana
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This is not a test: Preserving AutoCAD files at The University of Montana

  1. 1. This is not a test:Preserving AutoCAD Files at The University of Montana Sam MeisterMaureen and Mike Mansfield Library Digital Preservation Interest Group ALA Midwinter 2013 January 27, 2013
  2. 2. Context
  3. 3. Acquisition Accession Born-Digital WorkflowDiscovery Arrangement & & Access Description
  4. 4. Digital PreservationAcquisition Accession Born-Digital WorkflowDiscovery Arrangement & & Access Description Program
  5. 5. Paper drawings = known entity
  6. 6. AutoCAD files = unknown entity
  7. 7. Acquisition Process Donor Survey Feasibility Assessment Transfer Agreement
  8. 8. Donor survey
  9. 9. Feasibility Assessment Do we have resources to feasibly acquire, preserve, and provide access to the digital materials? YES* Size of collection (~1.4 GB)Opportunity to explore preservation strategies for complex digital objects
  10. 10. Accession Process Disk  Image  Donor  Hard   Drive   Package  Disk  Image  and   Documenta5on  Transfer  to  Secure  Storage  
  11. 11. [disk image]
  12. 12. AutoCAD Files?
  13. 13. AutoCAD Drawings - Characteristics Proprietary Undocumented* 2D drawings 3D models (simple)
  14. 14. AutoCAD Drawings - Formats.dwg Drawing •  Vector file •  Interoperable with other major CAD software.dwf Design Web Format •  Web-specific export for viewing files over the internet.dxf Drawing Interchange Format •  ASCII file •  Primary format for interoperability and exchange
  15. 15. Best Practices StandardsRecommendations
  16. 16. FACADEFuture-proofing Architectural Computer-Aided Design MIT Libraries 2006-2009
  17. 17. FACADE CAD is Problematic Highly volatile Relies on proprietary mathematical algorithmsPackaged in complex, proprietary, rapidly evolving software products Software is expensive, encrypted, and quickly obsolete
  18. 18. FACADE – Recommendations Preservation Strategy Generate derivative versionswith greater long-term preservation potential than native formats
  19. 19. FACADE – RecommendationsOriginal = originally submitted version of CAD modelDisplay = easily viewable format for presentation(3D PDF)Standard = Full representation in preservable standardformat(IFC, STEP)Dessicated = Simple geometry in preservable standardFormat(IGES)
  20. 20. IFC ?STEP ?IGES ?
  21. 21. IFC = Industry Foundation ClassesSTEP = Standard for Exchange of Product Model Data IGES = Initial Graphics Exchange Specification
  22. 22. FACADE – Recommendations AutoCAD Files Original = AutoCAD DWG Display = DWF PDF , Standard = DWF Dessicated = IGES
  23. 23. FACADE – Recommendations Emulation is “a viable technical approach forpreserving modern CAD software and data, but the issue of legal access to the software via license keys is a significant barrier”
  24. 24. Digital Archive for Architecture System (DAArch) Art Institute Chicago 2003 – 2007
  25. 25. DAArch – Recommendations Preservation Strategy1. Bit-stream preservation of native CAD files2. Generate derivative PDF / TIFF files
  26. 26. AHDS Preservation Handbook Computer Aided Design 2005
  27. 27. AHDS – Recommendations Suitable Preservation Formats: DXF IGES STEP
  28. 28. Digital Preservation Coalition WorkshopDesigned to Last: Preserving Computer Aided Design 2010 Participants: Royal Commission on the Ancient and Historical" Monuments of Scotland" " Oxford Archaeology" " Archaeology Data Service, University of York" " DCC/UKOLN University of Bath"
  29. 29. DPC Workshop – Recommendations We need an open preservation format standard
  30. 30. FUTURE:DPC Technology Watch Paper Computer Aided Design Alex Ball 2013
  31. 31. Smithsonian Institution Archives 2010-2011
  32. 32. Smithsonian – Recommendations Convert 2D drawings to PDF/E
  33. 33. Recommendations 1. Keep original native formats 2. Generate PDF format3. Generate industry standards-based neutral formats (IFC, IGES, STEP)
  34. 34. Local Strategies
  35. 35. Local Strategies MIGRATION" EMULATION"
  36. 36. MIGRATION"
  37. 37. MIGRATION"DWG   PDF/E   with Adobe Acrobat Pro TESTED
  38. 38. [PDF drawing]
  39. 39. MIGRATION"DWG   PDF/E   with AutoCAD* NOT TESTED
  40. 40. MIGRATION"DWG   DXF   with AutoCAD* NOT TESTED
  41. 41. MIGRATION"DWG   IGES   with AutoCAD* NOT TESTED
  42. 42. *AutoCAD may not be only option for migration
  43. 43. EMULATION" Donor  Hard  Drive    with VMWare / QEMU / KEEP NOT TESTED
  44. 44. Next StepsTest and determine feasibility of additionalmigration strategiesTest and determine feasibility of emulationstrategy
  45. 45. Big Picture / Conclusion
  46. 46. ReferencesAIMS Work Group. 2012. AIMS Born-Digital Collections: An Inter-Institutional Model for Stewardship. http://www2.lib.virginia.edu/aims/whitepaper/AIMS_final.pdf.Smith, M. (2009). Final Report for the MIT FACADE Project: October 2006- August 2009.Smith, M. (2008). Curating Architectural 3D CAD Models. The International Journal of Digital Curation, 1(4), 98-106.FACADE Topics: Digital Preservation. (n.d.) Retrieved January 4, 2013 from http://facade.mit.edu/topics/05_Digital_Preservation.htmlDigital Archive for Architecture (DAArch) (n.d.) Retrieved December 20, 2012 from http://kfa-inc.com/kfa12/articles/kfa-launches-daarch-demo-site/Westcott, K. (2005). Computer-Aided Design. In AHDS Preservation Handbook. Retrieved December 20, 2013 from http://www.ahds.ac.uk/preservation/ahds-preservation-documents.htm
  47. 47. ReferencesDesigned to Last: Preserving Computer-Aided Design. Retrieved December 20, 2012 from http://www.dpconline.org/events/previous-events/ 625-designed-to-last-preserving-computer-aided-designDigital Dilemma: Preserving Computer-Aided Design (CAD) Files. Retrieved December 20, 2012 from http://siarchives.si.edu/blog/digital-dilemma- preserving-computer-aided-design-cad-filesOpen Design Alliance. Retrieved December 20, 2012 from http://www.opendesign.com/
  48. 48. Thank You! Sam Meistersam.meister@mso.umt.edu @samalanmeister

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