Transcript Slide 1

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
• Our own administrative records
1,400,000
1,200,000
Number of files
1,000,000
800,000
600,000
400,000
200,000
File Extension Count
%
msg
1225790
doc
437803
xls
135573
pdf
82524
jpeg
58748
url
20701
xlsx
16777
docx
16765
htm
15616
txt
14199
ppt
12834
gif
11154
rtf
11046
tif
9293
MBX
6044
png
4812
obr
4368
bmp
3286
zip
2499
html
2307
csv
2266
vsd
2088
DAT
1972
xml
1898
pptx
1700
57.6
20.6
6.4
3.9
2.8
1.0
0.8
0.8
0.7
0.7
0.6
0.5
0.5
0.4
0.3
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
msg
xls
jpeg
xlsx
htm
ppt
rtf
MBX
obr
zip
csv
DAT
pptx
sql
VMBX
dwg
psd
mht
css
log
ico
mp3
tmp
mno
djvu
eps
db
exe
sgm
js
dll
wmz
xlsm
bat
DTA
0
File Format
5
For the record. For good.
For good.
Questions?