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For good.

 For the record. For good.
Putting Parsimonious
Preservation into Practice
Recent Developments
at The National Archives (UK)

Tim Gollins
Head Of Digital Preservation
21/11/2012
Our Public Task

 Our responsibility

                  for the government record,
       its past and future, its use and re-use,
     authentic, available and accessible to all
How long did you say this parchment would last?




4
The File format Long Tail
                                                   File Extension Count     %
                                                   msg              1225790     57.6
                                                   doc               437803     20.6
• Our own administrative records                   xls
                                                   pdf
                                                                     135573
                                                                      82524
                                                                                 6.4
                                                                                 3.9
                                                   jpeg               58748      2.8
                      1,400,000                    url                20701      1.0
                                                   xlsx               16777      0.8
                                                   docx               16765      0.8
                      1,200,000                    htm                15616      0.7
                                                   txt                14199      0.7
                                                   ppt                12834      0.6
                      1,000,000                    gif                11154      0.5
                                                   rtf                11046      0.5
                                                   tif                 9293      0.4
    Number of files




                       800,000                     MBX                 6044      0.3
                                                   png                 4812      0.2
                                                   obr                 4368      0.2
                       600,000                     bmp                 3286      0.2
                                                   zip                 2499      0.1
                                                   html                2307      0.1
                                                   csv                 2266      0.1
                       400,000
                                                   vsd                 2088      0.1
                                                   DAT                 1972      0.1
                                                   xml                 1898      0.1
                       200,000                     pptx                1700      0.1


                             0




                                   wmz
                                   jpeg




                                   djvu
                                    eps
                                   dwg




                                    exe
                                    psd




                                      dll
                                   msg



                                    xlsx




                                   tmp
                                    obr



                                   DAT




                                     css
                                     log




                                   mno




                                   DTA
                                   MBX




                                     sql
                                      xls




                                      rtf



                                     zip
                                     csv




                                  VMBX



                                   mht



                                     ico
                                   mp3




                                   xlsm
                                    bat
                                   pptx




                                   sgm
                                   htm
                                    ppt




                                     db



                                      js
                                     File Format



5
For the record. For good.
       For good.

 Questions?

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Putting Parsimonious Preservation Into Practice - Tim Gollins

  • 1. For good. For the record. For good.
  • 2. Putting Parsimonious Preservation into Practice Recent Developments at The National Archives (UK) Tim Gollins Head Of Digital Preservation 21/11/2012
  • 3. Our Public Task Our responsibility for the government record, its past and future, its use and re-use, authentic, available and accessible to all
  • 4. How long did you say this parchment would last? 4
  • 5. The File format Long Tail File Extension Count % msg 1225790 57.6 doc 437803 20.6 • Our own administrative records xls pdf 135573 82524 6.4 3.9 jpeg 58748 2.8 1,400,000 url 20701 1.0 xlsx 16777 0.8 docx 16765 0.8 1,200,000 htm 15616 0.7 txt 14199 0.7 ppt 12834 0.6 1,000,000 gif 11154 0.5 rtf 11046 0.5 tif 9293 0.4 Number of files 800,000 MBX 6044 0.3 png 4812 0.2 obr 4368 0.2 600,000 bmp 3286 0.2 zip 2499 0.1 html 2307 0.1 csv 2266 0.1 400,000 vsd 2088 0.1 DAT 1972 0.1 xml 1898 0.1 200,000 pptx 1700 0.1 0 wmz jpeg djvu eps dwg exe psd dll msg xlsx tmp obr DAT css log mno DTA MBX sql xls rtf zip csv VMBX mht ico mp3 xlsm bat pptx sgm htm ppt db js File Format 5
  • 6. For the record. For good. For good. Questions?