The memory of the architect: archiving 2D and 3D born digital architectural archives
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The memory of the architect: archiving 2D and 3D born digital architectural archives

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A presentation of a survey and testbed results, investigating the way architects manage their digital assets and a round up of issues when ingesting architects' bron digital archives

A presentation of a survey and testbed results, investigating the way architects manage their digital assets and a round up of issues when ingesting architects' bron digital archives

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The memory of the architect: archiving 2D and 3D born digital architectural archives The memory of the architect: archiving 2D and 3D born digital architectural archives Presentation Transcript

  • The memory of the architect creation and preservation of born digital architectural archives Henk Vanstappen, immd.be
  • CVAa: Centre of expertise coordinating the archiving of private documents on the architectural heritage in Flanders.
  • research questions ¤  survey: how are digital architectural archival records created and managed?
  • research questions ¤  survey: how are digital architectural archival records created and managed? ¤  case study: what steps are necessary at ingest and preservation?
  • !"#$%"&"'%"($)*($+"$*,-&.#"-#/$ -,"*0"$"($1"2*,.(%$)*($+.%.#*3"$415"-#"($ .($63**78"$*,-&.#"-#"(1',"*'8 8',)"9$.($4:+,*-&#$)*($&"#$ ;"(#,'7$63**78"$<,-&.#"-#'',*,-&.")"( 1. survey
  • objectives ¤  understanding of process of creation and management of digital archives. ¤  anticipate problems with digital sustainability. ¤  exploring possible win/win solutions.
  • design proces? “Designing is done with pencil and paper. The CAD drawing is made by an employee.”
  • design proces? “Designing is done with pencil and paper. The CAD drawing is made by an employee.” “We import an AutoCAD drawing into Sketch-up and convert it to 3D. The result is printed and updated with marker pen. We scan it again and edit it further in Photoshop.”
  • lesson #1 An understanding of the design process is a prerequisite to make decisions on preservation actions.
  • importance & use? “Our archive is a tool we use daily.”
  • importance & use? “Our archive is a tool we use daily.” “Files are moved to the basement once the acceptance is signed. We’ll only consult it in case of a legal dispute”
  • lesson #2 Tell me how you use your archive, and I’ll tell you how well it’s ordered.
  • lesson #3 Once a file is older than 10 years, attention and care declines dramatically.
  • file format obsolesence?
  • file format obsolesence? “Sometimes files can’t be read. We then try to find a printed version and scan it.”
  • CAD software
  • lesson #4 Architects have little issues with compatibility of files, formats and software – for now.
  • security & back-up? “Yes, it’s something we should do.”
  • lesson #5 Some architects like to live on the edge.
  • !"#$%&'"%()*&+(*,-"(*.%)%/+0*+"#$%/'#/11"+"#$%'&'(* * 23245** * * * * * * !"#$%&'&#'(&)*&)+,#-'($#'!"#$%&'(')*+'' ./0&12&#'3,2'&&#'$)14,2&1233)$)14,&5' ' ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! &&#'1$6&'62378',#'."7)$142'($#'4&2'9&#2)3%':;$$%6&'<)14,2&1233)$)14,&(&# =&#+':$#62$""&#' >?@A' ' 2. case study
  • projects
  • Christian Kieckens, HOUSE VM-D, OUDENBURG Restructuring of a farm house (1995-2001)
  • file analysis ¤  5 projects files ¤  >20,000 files ¤  up to 65% duplicate files ¤  quasi duplicates (e.g. pdf) ¤  73 different file formats
  • media
  • media Apple 655-0394 Quantum Fireball 1.2GB 50-Pin SCSI Hard Disk Drive
  • file format identification unrecognized file formats (DROID v6.01)
  • !"#$%&'$%""(%)*+"%,-./$,""0%/.%&"%1'$)'22"!3**+,"'&%4*(%""(%5678%3"2$*( >? *;3""!&'(#<= %@//+%,"$%3")*+"(%4*(%""(4/1&'#"%#"/A"$+'2B,"%4/+A"(%'2 )"!%#"2B,'0$=% vector formats variants C+/(("(% ,$$.DEE*,&2=*B=10E.+"2"+4*$'/(EB*&F.+"2"+4*$'/(F,*(&3//0=+$;%% ,$$.DEE"(=)'0'."&'*=/+#E)'0'E5678%% % ! G'#11+%HID%@*+'*($"(%4*(%,"$%5678F;/+A**$%3'J%,"$%"K./+$"+"(%1'$%L,'(/% divergent versions of IGES file format ! !
  • the treats ¤  obsolete / divergent file formats ¤  obsolete / licensed software ¤  obsolete operating systems ¤  obsolete hardware ¤  obsolete media ¤  bitrot
  • preservation file format? ¤  open format ¤  usage and software libraries ¤  geometry vs. intelligence (e.g. layers) ¤  reversibility ¤  external reference files (x-refs) ¤  … and try to keep it simple
  • incompatibility 1 how to define a circle...
  • incompatibility 2 how to define a sphere (tesselation issue)
  • testbed ¤  matrix formats & software migrations ¤  visual check (!) ¤  reversibility tests
  • migrate 2D vwx VWX (native)
  • migrate 2D vwx VWX > DWG: tesselation
  • migrate 2D dwg DWG (native)
  • migrate 2D dwg DWG > DXF
  • migrate 2D dwg DWG > STEP: intelligence lost
  • migrate 2D dwg DWG > VRLM: more intelligence lost
  • migrate 3D skp
  • migrate 3D skp skp > dwg: look & feel lost
  • reversibility 3D skp skp > dwg > skp intelligence lost
  • reversibility 3D skp skp > dwg > skp: stairs lost too...
  • turnkey? availability   3DM   openess   ✖   ✖   COLLADA   DGN   intelligence   ✖   ✖   ✖   DWG   ✖   DXF   ✖   IFC   other   ✖   ✖   ✖   ✖   IGES   ✖   ✖   ✖   OBJ   ✖   PDF/A-­‐2/3   ✖   ✖   PDF/E   ✖   ✖   PDF/E-­‐2   ✖   PRC   ✖   ✖   ✖   ✖   ✖   STEP   ✖   SVG   ✖   U3D   ✖   ✖   VRML   ✖   ✖   XRD   ✖   ✖  
  • 3. conclusions
  • recommendations 1 archival practice: ¤  document design process ¤  document hard- en software use ¤  redefine selection policies ¤  anticipate
  • recommendations 2 preservation strategy: ¤  no turnkey solution ¤  define users ¤  define users’ expectations ¤  define significant properties ¤  define migration pathway ¤  quality control
  • recommendations 3 expertise & research needs: ¤  update file format registries ¤  update file format identification tools ¤  document conversion methods & tools ¤  develop validation tools & tools ¤  develop CAD – qualified repositories ¤  research emulation strategies ¤  share expertise
  • www.immd.be/files/CVAaSurvey_rapport_final.pdf www.immd.be/files/CADarchivering_rapport_final.pdf henk@immd.be