Born-digital archives at the Wellcome Library: appraisal and sensitivity review of two hard drives

Figures & data

Table 1. A list of sampled born-digital folders from the Ashburner hard drive.

Folder name	Original no. files	Sample method	Post sample no. files
ADH.jacobs	193	Keep every 4th file, starting at 3rd file	49
Blasts	24	Keep every 2nd file, starting at 1st file	12
Clustals	69	Keep every 3rd file, starting at 2nd file	23
Old	80	Keep every 3rd file, starting at 2nd file	27
Frequencies	55	Keep every 2nd file, starting at 2nd file	29
Restriction maps	41	Keep every 2nd file, starting at 2nd file	21
ANT	100	Keep every 3rd file, starting at 2nd file	33
Crete	89	Keep every 3rd file, starting at 3rd file	37
EDGP	132	Keep every 4th file, starting at 2nd file	33
AustOcean.cat	102	Keep every 3rd file, starting at 2nd file	34
Gene-associations	26	Keep every 2nd file, starting at 2nd file	13
Baechli	120	Keep every 3rd folder, starting at 2nd folder	44
Db_swissprot	254	Keep every 5th file, starting at 3rd file	52
Sequences	1906	Keep every 10th file, starting at 8th file	201
FASTA	599	Keep every 10th file, starting at 4th file	62
Old	126	Keep every 4th file, starting at 1st file	31
Introns	18	Keep every 3rd file, starting at 2nd file	6
Repeats	15	Keep every 3rd file, starting at 3rd file	6
Analyses	367	Keep every 3rd folder, starting at 2nd folder	133
D_mel_ALIGNMENT_FILES.v3	87	Keep every 3rd file, starting at 3rd file	30
Gamexml	625	Keep every 12th file, starting at 1st file	52
old_public_data_sets	22	Keep every 4th file, starting at 3rd file	7
Total	5063	Total	935

Table 2. Wellcome Library sensitivity risk categories for digitized material made available online.

Risk category	General nature	Sample size (%)
A (low)	100+ years old No living individuals No risk of damage or distress to family	0
B (medium)	50–99 years old Some living individuals Little risk of damage or distress	Up to 100
C (high)	Less than 50 years old Some living individuals Potential damage or distress	50–100

Table 3. Wellcome Library sensitivity risk categories for born-digital records.

Risk category	General nature	Sample size
A (low)	Accession information/metadata suggests low risk Low-risk file formats and filenames Uniform content	Up to 5% to check accuracy of folder/file names
B (medium)	Accession information/metadata suggests some risk. Or lack of information/metadata Mixed content Some identified trigger words	Up to 66%, starting with most likely files
C (high)	Accession information/metadata suggests very likely risk. Or no information Mixed content Obscure file names High proportion of trigger words	Up to 100%, starting with most likely files