Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion?

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion?
In 5 years Very probable (1) 83.8% 264
Quite probable (2) 12.4% 39
Rather improbable (3) 1.9% 6
Most improbable (4) 1.9% 6
Total (Mean) 100.0% N=315 (1.22)
In 20 years Very probable (1) 35.6% 112
Quite probable (2) 50.5% 159
Rather improbable (3) 11.1% 35
Most improbable (4) 2.9% 9
Total (Mean) 100.0% N=315 (1.81)
In 50 years Very probable (1) 13.0% 41
Quite probable (2) 45.1% 142
Rather improbable (3) 26.3% 83
Most improbable (4) 15.6% 49
Total (Mean) 100.0% N=315 (2.44)
In 100 years Very probable (1) 9.2% 29
Quite probable (2) 24.1% 76
Rather improbable (3) 34.9% 110
Most improbable (4) 31.7% 100
Total (Mean) 100.0% N=315 (2.89)
In 500 years Very probable (1) 6.7% 21
Quite probable (2) 16.8% 53
Rather improbable (3) 20.3% 64
Most improbable (4) 56.2% 177
Total (Mean) 100.0% N=315 (3.26)

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Region


Central Europe w/o Germany Scandinavian countries New EU member states Mediterranean countries Germany UK and Ireland Total
In 5 years Very probable (1) 84.4% 84.4% 89.3% 68.5% 87.0% 88.9% 83.8%
54 27 67 37 47 32 264
Quite probable (2) 14.1% 12.5% 6.7% 24.1% 13.0% 2.8% 12.4%
9 4 5 13 7 1 39
Rather improbable (3) .0% 3.1% 1.3% 5.6% .0% 2.8% 1.9%
0 1 1 3 0 1 6
Most improbable (4) 1.6% .0% 2.7% 1.9% .0% 5.6% 1.9%
1 0 2 1 0 2 6
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=64 N=32 N=75 N=54 N=54 N=36 N=315
(1.19) (1.19) (1.17) (1.41) (1.13) (1.25) (1.22)
In 20 years Very probable (1) 32.8% 53.1% 33.3% 35.2% 24.1% 47.2% 35.6%
21 17 25 19 13 17 112
Quite probable (2) 51.6% 46.9% 50.7% 44.4% 59.3% 47.2% 50.5%
33 15 38 24 32 17 159
Rather improbable (3) 14.1% .0% 10.7% 16.7% 13.0% 5.6% 11.1%
9 0 8 9 7 2 35
Most improbable (4) 1.6% .0% 5.3% 3.7% 3.7% .0% 2.9%
1 0 4 2 2 0 9
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=64 N=32 N=75 N=54 N=54 N=36 N=315
(1.84) (1.47) (1.88) (1.89) (1.96) (1.58) (1.81)
In 50 years Very probable (1) 14.1% 12.5% 9.3% 16.7% 7.4% 22.2% 13.0%
9 4 7 9 4 8 41
Quite probable (2) 45.3% 68.8% 41.3% 38.9% 38.9% 50.0% 45.1%
29 22 31 21 21 18 142
Rather improbable (3) 23.4% 15.6% 30.7% 22.2% 37.0% 22.2% 26.3%
15 5 23 12 20 8 83
Most improbable (4) 17.2% 3.1% 18.7% 22.2% 16.7% 5.6% 15.6%
11 1 14 12 9 2 49
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=64 N=32 N=75 N=54 N=54 N=36 N=315
(2.44) (2.09) (2.59) (2.50) (2.63) (2.11) (2.44)
In 100 years Very probable (1) 7.8% 3.1% 8.0% 20.4% 1.9% 13.9% 9.2%
5 1 6 11 1 5 29
Quite probable (2) 31.3% 50.0% 10.7% 11.1% 20.4% 41.7% 24.1%
20 16 8 6 11 15 76
Rather improbable (3) 34.4% 34.4% 40.0% 33.3% 35.2% 27.8% 34.9%
22 11 30 18 19 10 110
Most improbable (4) 26.6% 12.5% 41.3% 35.2% 42.6% 16.7% 31.7%
17 4 31 19 23 6 100
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=64 N=32 N=75 N=54 N=54 N=36 N=315
(2.80) (2.56) (3.15) (2.83) (3.19) (2.47) (2.89)
In 500 years Very probable (1) 6.3% 6.3% 5.3% 14.8% .0% 8.3% 6.7%
4 2 4 8 0 3 21
Quite probable (2) 23.4% 34.4% 8.0% 5.6% 13.0% 30.6% 16.8%
15 11 6 3 7 11 53
Rather improbable (3) 21.9% 18.8% 16.0% 20.4% 24.1% 22.2% 20.3%
14 6 12 11 13 8 64
Most improbable (4) 48.4% 40.6% 70.7% 59.3% 63.0% 38.9% 56.2%
31 13 53 32 34 14 177
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=64 N=32 N=75 N=54 N=54 N=36 N=315
(3.12) (2.94) (3.52) (3.24) (3.50) (2.92) (3.26)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 11.688 13.536 14.438 23.967 19.142
df 5 5 5 5 5
Asymp. Sig. .039 .019 .013 .000 .002

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Type of library


GRL NL UL Total
In 5 years Very probable (1) 71.7% 83.9% 86.1% 83.8%
33 26 205 264
Quite probable (2) 28.3% 16.1% 8.8% 12.4%
13 5 21 39
Rather improbable (3) .0% .0% 2.5% 1.9%
0 0 6 6
Most improbable (4) .0% .0% 2.5% 1.9%
0 0 6 6
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=46 N=31 N=238 N=315
(1.28) (1.16) (1.21) (1.22)
In 20 years Very probable (1) 21.7% 48.4% 36.6% 35.6%
10 15 87 112
Quite probable (2) 54.3% 32.3% 52.1% 50.5%
25 10 124 159
Rather improbable (3) 21.7% 16.1% 8.4% 11.1%
10 5 20 35
Most improbable (4) 2.2% 3.2% 2.9% 2.9%
1 1 7 9
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=46 N=31 N=238 N=315
(2.04) (1.74) (1.78) (1.81)
In 50 years Very probable (1) 15.2% 22.6% 11.3% 13.0%
7 7 27 41
Quite probable (2) 28.3% 41.9% 48.7% 45.1%
13 13 116 142
Rather improbable (3) 30.4% 19.4% 26.5% 26.3%
14 6 63 83
Most improbable (4) 26.1% 16.1% 13.4% 15.6%
12 5 32 49
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=46 N=31 N=238 N=315
(2.67) (2.29) (2.42) (2.44)
In 100 years Very probable (1) 10.9% 9.7% 8.8% 9.2%
5 3 21 29
Quite probable (2) 10.9% 29.0% 26.1% 24.1%
5 9 62 76
Rather improbable (3) 34.8% 32.3% 35.3% 34.9%
16 10 84 110
Most improbable (4) 43.5% 29.0% 29.8% 31.7%
20 9 71 100
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=46 N=31 N=238 N=315
(3.11) (2.81) (2.86) (2.89)
In 500 years Very probable (1) 6.5% 9.7% 6.3% 6.7%
3 3 15 21
Quite probable (2) 10.9% 25.8% 16.8% 16.8%
5 8 40 53
Rather improbable (3) 8.7% 12.9% 23.5% 20.3%
4 4 56 64
Most improbable (4) 73.9% 51.6% 53.4% 56.2%
34 16 127 177
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=46 N=31 N=238 N=315
(3.50) (3.06) (3.24) (3.26)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 4.793 6.536 4.039 3.609 5.466
df 2 2 2 2 2
Asymp. Sig. .091 .038 .133 .165 .065

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Number of bound volumes


Less than 350000 350000 to 700000 700001 to 1800000 More than 1800000 Total
In 5 years Very probable (1) 73.1% 88.0% 87.0% 87.8% 84.0%
57 66 67 72 262
Quite probable (2) 19.2% 8.0% 11.7% 11.0% 12.5%
15 6 9 9 39
Rather improbable (3) 3.8% 1.3% .0% 1.2% 1.6%
3 1 0 1 5
Most improbable (4) 3.8% 2.7% 1.3% .0% 1.9%
3 2 1 0 6
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=78 N=75 N=77 N=82 N=312
(1.38) (1.19) (1.16) (1.13) (1.21)
In 20 years Very probable (1) 32.1% 38.7% 39.0% 32.9% 35.6%
25 29 30 27 111
Quite probable (2) 48.7% 48.0% 53.2% 51.2% 50.3%
38 36 41 42 157
Rather improbable (3) 16.7% 10.7% 5.2% 12.2% 11.2%
13 8 4 10 35
Most improbable (4) 2.6% 2.7% 2.6% 3.7% 2.9%
2 2 2 3 9
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=78 N=75 N=77 N=82 N=312
(1.90) (1.77) (1.71) (1.87) (1.81)
In 50 years Very probable (1) 11.5% 9.3% 18.2% 12.2% 12.8%
9 7 14 10 40
Quite probable (2) 35.9% 50.7% 50.6% 43.9% 45.2%
28 38 39 36 141
Rather improbable (3) 26.9% 30.7% 19.5% 28.0% 26.3%
21 23 15 23 82
Most improbable (4) 25.6% 9.3% 11.7% 15.9% 15.7%
20 7 9 13 49
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=78 N=75 N=77 N=82 N=312
(2.67) (2.40) (2.25) (2.48) (2.45)
In 100 years Very probable (1) 11.5% 8.0% 10.4% 6.1% 9.0%
9 6 8 5 28
Quite probable (2) 16.7% 20.0% 32.5% 28.0% 24.4%
13 15 25 23 76
Rather improbable (3) 28.2% 45.3% 32.5% 34.1% 34.9%
22 34 25 28 109
Most improbable (4) 43.6% 26.7% 24.7% 31.7% 31.7%
34 20 19 26 99
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=78 N=75 N=77 N=82 N=312
(3.04) (2.91) (2.71) (2.91) (2.89)
In 500 years Very probable (1) 11.5% 8.0% 3.9% 3.7% 6.7%
9 6 3 3 21
Quite probable (2) 10.3% 14.7% 20.8% 20.7% 16.7%
8 11 16 17 52
Rather improbable (3) 14.1% 17.3% 28.6% 22.0% 20.5%
11 13 22 18 64
Most improbable (4) 64.1% 60.0% 46.8% 53.7% 56.1%
50 45 36 44 175
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=78 N=75 N=77 N=82 N=312
(3.31) (3.29) (3.18) (3.26) (3.26)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 9.578 2.991 8.398 5.579 2.598
df 3 3 3 3 3
Asymp. Sig. .023 .393 .038 .134 .458

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Foundation of library


Before 1960 1960 to Present Total
In 5 years Very probable (1) 82.9% 85.9% 83.8%
175 79 254
Quite probable (2) 13.7% 9.8% 12.5%
29 9 38
Rather improbable (3) 1.4% 2.2% 1.7%
3 2 5
Most improbable (4) 1.9% 2.2% 2.0%
4 2 6
Total (Mean) 100.0% 100.0% 100.0%
N=211 N=92 N=303
(1.22) (1.21) (1.22)
In 20 years Very probable (1) 37.4% 33.7% 36.3%
79 31 110
Quite probable (2) 49.3% 51.1% 49.8%
104 47 151
Rather improbable (3) 10.0% 13.0% 10.9%
21 12 33
Most improbable (4) 3.3% 2.2% 3.0%
7 2 9
Total (Mean) 100.0% 100.0% 100.0%
N=211 N=92 N=303
(1.79) (1.84) (1.81)
In 50 years Very probable (1) 14.7% 9.8% 13.2%
31 9 40
Quite probable (2) 45.0% 44.6% 44.9%
95 41 136
Rather improbable (3) 27.5% 23.9% 26.4%
58 22 80
Most improbable (4) 12.8% 21.7% 15.5%
27 20 47
Total (Mean) 100.0% 100.0% 100.0%
N=211 N=92 N=303
(2.38) (2.58) (2.44)
In 100 years Very probable (1) 10.0% 7.6% 9.2%
21 7 28
Quite probable (2) 24.2% 25.0% 24.4%
51 23 74
Rather improbable (3) 37.0% 28.3% 34.3%
78 26 104
Most improbable (4) 28.9% 39.1% 32.0%
61 36 97
Total (Mean) 100.0% 100.0% 100.0%
N=211 N=92 N=303
(2.85) (2.99) (2.89)
In 500 years Very probable (1) 6.2% 7.6% 6.6%
13 7 20
Quite probable (2) 18.0% 14.1% 16.8%
38 13 51
Rather improbable (3) 22.3% 18.5% 21.1%
47 17 64
Most improbable (4) 53.6% 59.8% 55.4%
113 55 168
Total (Mean) 100.0% 100.0% 100.0%
N=211 N=92 N=303
(3.23) (3.30) (3.25)

Mann-Whitney U Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Mann-Whitney U 9447.000 9293.500 8694.000 8885.000 9186.500
Wilcoxon W 13725.000 31659.500 31060.000 31251.000 31552.500
Z -.578 -.647 -1.534 -1.226 -.821
Asymp. Sig. (2-tailed) .564 .518 .125 .220 .412

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Position of respondent


Head of library/ Chief librarian Head of department Project manager Employee Total
In 5 years Very probable (1) 82.5% 89.2% 74.1% 88.9% 84.1%
146 74 20 24 264
Quite probable (2) 13.6% 8.4% 18.5% 7.4% 12.1%
24 7 5 2 38
Rather improbable (3) 2.3% 1.2% 3.7% .0% 1.9%
4 1 1 0 6
Most improbable (4) 1.7% 1.2% 3.7% 3.7% 1.9%
3 1 1 1 6
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=177 N=83 N=27 N=27 N=314
(1.23) (1.14) (1.37) (1.19) (1.22)
In 20 years Very probable (1) 41.2% 26.5% 25.9% 33.3% 35.4%
73 22 7 9 111
Quite probable (2) 42.4% 62.7% 66.7% 51.9% 50.6%
75 52 18 14 159
Rather improbable (3) 13.0% 8.4% 3.7% 14.8% 11.1%
23 7 1 4 35
Most improbable (4) 3.4% 2.4% 3.7% .0% 2.9%
6 2 1 0 9
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=177 N=83 N=27 N=27 N=314
(1.79) (1.87) (1.85) (1.81) (1.82)
In 50 years Very probable (1) 14.1% 8.4% 11.1% 18.5% 12.7%
25 7 3 5 40
Quite probable (2) 46.9% 47.0% 37.0% 37.0% 45.2%
83 39 10 10 142
Rather improbable (3) 22.0% 32.5% 37.0% 25.9% 26.4%
39 27 10 7 83
Most improbable (4) 16.9% 12.0% 14.8% 18.5% 15.6%
30 10 4 5 49
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=177 N=83 N=27 N=27 N=314
(2.42) (2.48) (2.56) (2.44) (2.45)
In 100 years Very probable (1) 10.7% 7.2% 7.4% 3.7% 8.9%
19 6 2 1 28
Quite probable (2) 22.0% 27.7% 18.5% 33.3% 24.2%
39 23 5 9 76
Rather improbable (3) 35.6% 33.7% 40.7% 29.6% 35.0%
63 28 11 8 110
Most improbable (4) 31.6% 31.3% 33.3% 33.3% 31.8%
56 26 9 9 100
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=177 N=83 N=27 N=27 N=314
(2.88) (2.89) (3.00) (2.93) (2.90)
In 500 years Very probable (1) 7.3% 6.0% 3.7% 3.7% 6.4%
13 5 1 1 20
Quite probable (2) 16.4% 18.1% 22.2% 11.1% 16.9%
29 15 6 3 53
Rather improbable (3) 19.2% 22.9% 11.1% 29.6% 20.4%
34 19 3 8 64
Most improbable (4) 57.1% 53.0% 63.0% 55.6% 56.4%
101 44 17 15 177
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=177 N=83 N=27 N=27 N=314
(3.26) (3.23) (3.33) (3.37) (3.27)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 4.411 1.938 1.112 .332 .562
df 3 3 3 3 3
Asymp. Sig. .220 .585 .774 .954 .905

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Background of respondent


Librarian Technician / IT Manager Scientist Total
In 5 years Very probable (1) 83.0% 82.8% 83.6% 95.8% 84.1%
156 24 61 23 264
Quite probable (2) 11.2% 17.2% 15.1% 4.2% 12.1%
21 5 11 1 38
Rather improbable (3) 3.2% .0% .0% .0% 1.9%
6 0 0 0 6
Most improbable (4) 2.7% .0% 1.4% .0% 1.9%
5 0 1 0 6
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=188 N=29 N=73 N=24 N=314
(1.26) (1.17) (1.19) (1.04) (1.22)
In 20 years Very probable (1) 33.0% 24.1% 42.5% 45.8% 35.4%
62 7 31 11 111
Quite probable (2) 53.2% 58.6% 42.5% 45.8% 50.6%
100 17 31 11 159
Rather improbable (3) 11.7% 6.9% 12.3% 8.3% 11.1%
22 2 9 2 35
Most improbable (4) 2.1% 10.3% 2.7% .0% 2.9%
4 3 2 0 9
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=188 N=29 N=73 N=24 N=314
(1.83) (2.03) (1.75) (1.62) (1.82)
In 50 years Very probable (1) 12.8% 10.3% 15.1% 8.3% 12.7%
24 3 11 2 40
Quite probable (2) 45.7% 34.5% 47.9% 45.8% 45.2%
86 10 35 11 142
Rather improbable (3) 28.2% 37.9% 16.4% 29.2% 26.4%
53 11 12 7 83
Most improbable (4) 13.3% 17.2% 20.5% 16.7% 15.6%
25 5 15 4 49
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=188 N=29 N=73 N=24 N=314
(2.42) (2.62) (2.42) (2.54) (2.45)
In 100 years Very probable (1) 9.6% 6.9% 8.2% 8.3% 8.9%
18 2 6 2 28
Quite probable (2) 24.5% 17.2% 27.4% 20.8% 24.2%
46 5 20 5 76
Rather improbable (3) 35.6% 34.5% 32.9% 37.5% 35.0%
67 10 24 9 110
Most improbable (4) 30.3% 41.4% 31.5% 33.3% 31.8%
57 12 23 8 100
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=188 N=29 N=73 N=24 N=314
(2.87) (3.10) (2.88) (2.96) (2.90)
In 500 years Very probable (1) 5.9% 6.9% 6.8% 8.3% 6.4%
11 2 5 2 20
Quite probable (2) 17.6% 10.3% 17.8% 16.7% 16.9%
33 3 13 4 53
Rather improbable (3) 19.7% 20.7% 24.7% 12.5% 20.4%
37 6 18 3 64
Most improbable (4) 56.9% 62.1% 50.7% 62.5% 56.4%
107 18 37 15 177
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=188 N=29 N=73 N=24 N=314
(3.28) (3.38) (3.19) (3.29) (3.27)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 2.794 4.169 1.889 1.805 1.259
df 3 3 3 3 3
Asymp. Sig. .424 .244 .596 .614 .739

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Age of respondent


Under 31 31-40 years 41-50 years 51-60 years Over 60 Total
In 5 years Very probable (1) 100.0% 87.0% 85.0% 80.8% 85.7% 83.9%
5 40 91 101 18 255
Quite probable (2) .0% 8.7% 10.3% 16.0% 14.3% 12.5%
0 4 11 20 3 38
Rather improbable (3) .0% 2.2% 2.8% 1.6% .0% 2.0%
0 1 3 2 0 6
Most improbable (4) .0% 2.2% 1.9% 1.6% .0% 1.6%
0 1 2 2 0 5
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=5 N=46 N=107 N=125 N=21 N=304
(1.00) (1.20) (1.21) (1.24) (1.14) (1.21)
In 20 years Very probable (1) .0% 28.3% 30.8% 43.2% 33.3% 35.2%
0 13 33 54 7 107
Quite probable (2) 100.0% 60.9% 52.3% 43.2% 52.4% 50.7%
5 28 56 54 11 154
Rather improbable (3) .0% 10.9% 12.1% 10.4% 14.3% 11.2%
0 5 13 13 3 34
Most improbable (4) .0% .0% 4.7% 3.2% .0% 3.0%
0 0 5 4 0 9
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=5 N=46 N=107 N=125 N=21 N=304
(2.00) (1.83) (1.91) (1.74) (1.81) (1.82)
In 50 years Very probable (1) .0% 17.4% 11.2% 13.6% 14.3% 13.2%
0 8 12 17 3 40
Quite probable (2) 20.0% 30.4% 44.9% 52.0% 38.1% 44.7%
1 14 48 65 8 136
Rather improbable (3) 80.0% 34.8% 23.4% 23.2% 23.8% 26.0%
4 16 25 29 5 79
Most improbable (4) .0% 17.4% 20.6% 11.2% 23.8% 16.1%
0 8 22 14 5 49
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=5 N=46 N=107 N=125 N=21 N=304
(2.80) (2.52) (2.53) (2.32) (2.57) (2.45)
In 100 years Very probable (1) .0% 10.9% 9.3% 8.0% 9.5% 8.9%
0 5 10 10 2 27
Quite probable (2) 20.0% 17.4% 17.8% 33.6% 19.0% 24.3%
1 8 19 42 4 74
Rather improbable (3) 80.0% 39.1% 32.7% 33.6% 33.3% 34.9%
4 18 35 42 7 106
Most improbable (4) .0% 32.6% 40.2% 24.8% 38.1% 31.9%
0 15 43 31 8 97
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=5 N=46 N=107 N=125 N=21 N=304
(2.80) (2.93) (3.04) (2.75) (3.00) (2.90)
In 500 years Very probable (1) .0% 10.9% 4.7% 6.4% 4.8% 6.3%
0 5 5 8 1 19
Quite probable (2) 20.0% 8.7% 15.0% 22.4% 14.3% 17.1%
1 4 16 28 3 52
Rather improbable (3) .0% 15.2% 19.6% 23.2% 23.8% 20.4%
0 7 21 29 5 62
Most improbable (4) 80.0% 65.2% 60.7% 48.0% 57.1% 56.3%
4 30 65 60 12 171
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=5 N=46 N=107 N=125 N=21 N=304
(3.60) (3.35) (3.36) (3.13) (3.33) (3.27)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 2.157 4.585 5.218 7.090 6.089
df 4 4 4 4 4
Asymp. Sig. .707 .333 .266 .131 .193

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q1 - Generally speaking, how important do you consider the long-term preservation of digital documents?


Very important Rather important Rather unimportant Totally unimportant Total
In 5 years Very probable (1) 83.9% 84.7% 66.7% 100.0% 84.0%
198 61 2 2 263
Quite probable (2) 12.7% 12.5% .0% .0% 12.5%
30 9 0 0 39
Rather improbable (3) 2.1% 1.4% .0% .0% 1.9%
5 1 0 0 6
Most improbable (4) 1.3% 1.4% 33.3% .0% 1.6%
3 1 1 0 5
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=236 N=72 N=3 N=2 N=313
(1.21) (1.19) (2.00) (1.00) (1.21)
In 20 years Very probable (1) 39.8% 25.0% .0% .0% 35.8%
94 18 0 0 112
Quite probable (2) 48.3% 59.7% 66.7% .0% 50.8%
114 43 2 0 159
Rather improbable (3) 9.3% 11.1% 33.3% 100.0% 10.5%
22 8 1 2 33
Most improbable (4) 2.5% 4.2% .0% .0% 2.9%
6 3 0 0 9
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=236 N=72 N=3 N=2 N=313
(1.75) (1.94) (2.33) (3.00) (1.81)
In 50 years Very probable (1) 15.3% 6.9% .0% .0% 13.1%
36 5 0 0 41
Quite probable (2) 43.6% 50.0% 66.7% .0% 45.0%
103 36 2 0 141
Rather improbable (3) 26.7% 26.4% 33.3% .0% 26.5%
63 19 1 0 83
Most improbable (4) 14.4% 16.7% .0% 100.0% 15.3%
34 12 0 2 48
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=236 N=72 N=3 N=2 N=313
(2.40) (2.53) (2.33) (4.00) (2.44)
In 100 years Very probable (1) 9.7% 5.6% 33.3% .0% 8.9%
23 4 1 0 28
Quite probable (2) 28.4% 12.5% .0% .0% 24.3%
67 9 0 0 76
Rather improbable (3) 30.5% 50.0% 66.7% .0% 35.1%
72 36 2 0 110
Most improbable (4) 31.4% 31.9% .0% 100.0% 31.6%
74 23 0 2 99
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=236 N=72 N=3 N=2 N=313
(2.83) (3.08) (2.33) (4.00) (2.89)
In 500 years Very probable (1) 6.4% 5.6% 33.3% .0% 6.4%
15 4 1 0 20
Quite probable (2) 19.5% 9.7% .0% .0% 16.9%
46 7 0 0 53
Rather improbable (3) 19.9% 22.2% 33.3% .0% 20.4%
47 16 1 0 64
Most improbable (4) 54.2% 62.5% 33.3% 100.0% 56.2%
128 45 1 2 176
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=236 N=72 N=3 N=2 N=313
(3.22) (3.42) (2.67) (4.00) (3.27)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 1.499 11.811 5.861 7.333 4.499
df 3 3 3 3 3
Asymp. Sig. .683 .008 .119 .062 .212

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q2 - Generally speaking, do you consider the long-term preservation of digital documents to be an intrinsic task of libraries?


Yes No Total
In 5 years Very probable (1) 86.8% 62.1% 84.4%
236 18 254
Quite probable (2) 11.0% 31.0% 13.0%
30 9 39
Rather improbable (3) 1.1% 3.4% 1.3%
3 1 4
Most improbable (4) 1.1% 3.4% 1.3%
3 1 4
Total (Mean) 100.0% 100.0% 100.0%
N=272 N=29 N=301
(1.17) (1.48) (1.20)
In 20 years Very probable (1) 37.5% 20.7% 35.9%
102 6 108
Quite probable (2) 51.5% 37.9% 50.2%
140 11 151
Rather improbable (3) 8.5% 37.9% 11.3%
23 11 34
Most improbable (4) 2.6% 3.4% 2.7%
7 1 8
Total (Mean) 100.0% 100.0% 100.0%
N=272 N=29 N=301
(1.76) (2.24) (1.81)
In 50 years Very probable (1) 12.9% 17.2% 13.3%
35 5 40
Quite probable (2) 47.4% 13.8% 44.2%
129 4 133
Rather improbable (3) 25.7% 37.9% 26.9%
70 11 81
Most improbable (4) 14.0% 31.0% 15.6%
38 9 47
Total (Mean) 100.0% 100.0% 100.0%
N=272 N=29 N=301
(2.41) (2.83) (2.45)
In 100 years Very probable (1) 7.7% 20.7% 9.0%
21 6 27
Quite probable (2) 26.1% 6.9% 24.3%
71 2 73
Rather improbable (3) 36.8% 17.2% 34.9%
100 5 105
Most improbable (4) 29.4% 55.2% 31.9%
80 16 96
Total (Mean) 100.0% 100.0% 100.0%
N=272 N=29 N=301
(2.88) (3.07) (2.90)
In 500 years Very probable (1) 5.5% 13.8% 6.3%
15 4 19
Quite probable (2) 17.6% 10.3% 16.9%
48 3 51
Rather improbable (3) 21.3% 10.3% 20.3%
58 3 61
Most improbable (4) 55.5% 65.5% 56.5%
151 19 170
Total (Mean) 100.0% 100.0% 100.0%
N=272 N=29 N=301
(3.27) (3.28) (3.27)

Mann-Whitney U Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Mann-Whitney U 2967.000 2633.000 2936.500 3290.000 3731.500
Wilcoxon W 40095.000 39761.000 40064.500 40418.000 40859.500
Z -3.481 -3.237 -2.399 -1.539 -.531
Asymp. Sig. (2-tailed) .001 .001 .016 .124 .595

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q3 - Do you consider the long-term preservation of digital documents to be an intrinsic task of your own library?


Yes No Total
In 5 years Very probable (1) 85.8% 89.2% 86.2%
199 33 232
Quite probable (2) 11.2% 8.1% 10.8%
26 3 29
Rather improbable (3) 1.3% 2.7% 1.5%
3 1 4
Most improbable (4) 1.7% .0% 1.5%
4 0 4
Total (Mean) 100.0% 100.0% 100.0%
N=232 N=37 N=269
(1.19) (1.14) (1.18)
In 20 years Very probable (1) 37.9% 29.7% 36.8%
88 11 99
Quite probable (2) 50.0% 64.9% 52.0%
116 24 140
Rather improbable (3) 9.1% 2.7% 8.2%
21 1 22
Most improbable (4) 3.0% 2.7% 3.0%
7 1 8
Total (Mean) 100.0% 100.0% 100.0%
N=232 N=37 N=269
(1.77) (1.78) (1.77)
In 50 years Very probable (1) 12.9% 13.5% 13.0%
30 5 35
Quite probable (2) 47.0% 43.2% 46.5%
109 16 125
Rather improbable (3) 24.6% 35.1% 26.0%
57 13 70
Most improbable (4) 15.5% 8.1% 14.5%
36 3 39
Total (Mean) 100.0% 100.0% 100.0%
N=232 N=37 N=269
(2.43) (2.38) (2.42)
In 100 years Very probable (1) 7.8% 8.1% 7.8%
18 3 21
Quite probable (2) 26.3% 21.6% 25.7%
61 8 69
Rather improbable (3) 37.1% 35.1% 36.8%
86 13 99
Most improbable (4) 28.9% 35.1% 29.7%
67 13 80
Total (Mean) 100.0% 100.0% 100.0%
N=232 N=37 N=269
(2.87) (2.97) (2.88)
In 500 years Very probable (1) 6.5% 2.7% 5.9%
15 1 16
Quite probable (2) 16.8% 21.6% 17.5%
39 8 47
Rather improbable (3) 22.4% 10.8% 20.8%
52 4 56
Most improbable (4) 54.3% 64.9% 55.8%
126 24 150
Total (Mean) 100.0% 100.0% 100.0%
N=232 N=37 N=269
(3.25) (3.38) (3.26)

Mann-Whitney U Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Mann-Whitney U 4146.000 4153.000 4246.500 4002.500 3924.500
Wilcoxon W 4849.000 31181.000 4949.500 31030.500 30952.500
Z -.556 -.352 -.111 -.692 -.928
Asymp. Sig. (2-tailed) .578 .725 .912 .489 .353

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q4 - Does your library already maintain a repository of digital documents?


Yes. Our digital repository is accessible online. Not yet, but there are plans to establish one. No, and there are no plans to establish one at present. Total
In 5 years Very probable (1) 90.6% 87.6% 64.2% 83.1%
96 92 43 231
Quite probable (2) 6.6% 9.5% 28.4% 12.9%
7 10 19 36
Rather improbable (3) .9% 1.9% 3.0% 1.8%
1 2 2 5
Most improbable (4) 1.9% 1.0% 4.5% 2.2%
2 1 3 6
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=106 N=105 N=67 N=278
(1.14) (1.16) (1.48) (1.23)
In 20 years Very probable (1) 44.3% 35.2% 25.4% 36.3%
47 37 17 101
Quite probable (2) 49.1% 51.4% 43.3% 48.6%
52 54 29 135
Rather improbable (3) 5.7% 11.4% 23.9% 12.2%
6 12 16 34
Most improbable (4) .9% 1.9% 7.5% 2.9%
1 2 5 8
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=106 N=105 N=67 N=278
(1.63) (1.80) (2.13) (1.82)
In 50 years Very probable (1) 16.0% 10.5% 11.9% 12.9%
17 11 8 36
Quite probable (2) 50.0% 50.5% 29.9% 45.3%
53 53 20 126
Rather improbable (3) 26.4% 21.9% 28.4% 25.2%
28 23 19 70
Most improbable (4) 7.5% 17.1% 29.9% 16.5%
8 18 20 46
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=106 N=105 N=67 N=278
(2.25) (2.46) (2.76) (2.45)
In 100 years Very probable (1) 8.5% 7.6% 13.4% 9.4%
9 8 9 26
Quite probable (2) 33.0% 25.7% 9.0% 24.5%
35 27 6 68
Rather improbable (3) 33.0% 41.0% 28.4% 34.9%
35 43 19 97
Most improbable (4) 25.5% 25.7% 49.3% 31.3%
27 27 33 87
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=106 N=105 N=67 N=278
(2.75) (2.85) (3.13) (2.88)
In 500 years Very probable (1) 6.6% 4.8% 11.9% 7.2%
7 5 8 20
Quite probable (2) 21.7% 16.2% 7.5% 16.2%
23 17 5 45
Rather improbable (3) 23.6% 24.8% 13.4% 21.6%
25 26 9 60
Most improbable (4) 48.1% 54.3% 67.2% 55.0%
51 57 45 153
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=106 N=105 N=67 N=278
(3.13) (3.29) (3.36) (3.24)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 22.223 15.160 11.504 9.140 4.237
df 2 2 2 2 2
Asymp. Sig. .000 .001 .003 .010 .120

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q5 - Does your library have any written guidelines for the long-term preservation of digital documents?


Yes. These guidelines are published online. Yes, but these guidelines are not publicly accessible. No, but there are plans to create some. No, and there are no plans to create any. Total
In 5 years Very probable (1) 90.0% 91.7% 89.2% 85.7% 89.1%
18 22 124 24 188
Quite probable (2) 10.0% 8.3% 7.2% 10.7% 8.1%
2 2 10 3 17
Rather improbable (3) .0% .0% 1.4% 3.6% 1.4%
0 0 2 1 3
Most improbable (4) .0% .0% 2.2% .0% 1.4%
0 0 3 0 3
Total 100.0% 100.0% 100.0% 100.0% 100.0%
N=20 N=24 N=139 N=28 N=211
(1.10) (1.08) (1.17) (1.18) (1.15)
In 20 years Very probable (1) 45.0% 54.2% 36.7% 39.3% 39.8%
9 13 51 11 84
Quite probable (2) 40.0% 33.3% 55.4% 46.4% 50.2%
8 8 77 13 106
Rather improbable (3) 10.0% 12.5% 7.2% 10.7% 8.5%
2 3 10 3 18
Most improbable (4) 5.0% .0% .7% 3.6% 1.4%
1 0 1 1 3
Total 100.0% 100.0% 100.0% 100.0% 100.0%
N=20 N=24 N=139 N=28 N=211
(1.75) (1.58) (1.72) (1.79) (1.72)
In 50 years Very probable (1) 30.0% 16.7% 10.8% 10.7% 13.3%
6 4 15 3 28
Quite probable (2) 25.0% 50.0% 56.1% 39.3% 50.2%
5 12 78 11 106
Rather improbable (3) 30.0% 16.7% 22.3% 35.7% 24.2%
6 4 31 10 51
Most improbable (4) 15.0% 16.7% 10.8% 14.3% 12.3%
3 4 15 4 26
Total 100.0% 100.0% 100.0% 100.0% 100.0%
N=20 N=24 N=139 N=28 N=211
(2.30) (2.33) (2.33) (2.54) (2.36)
In 100 years Very probable (1) 15.0% 4.2% 7.2% 10.7% 8.1%
3 1 10 3 17
Quite probable (2) 20.0% 33.3% 31.7% 21.4% 29.4%
4 8 44 6 62
Rather improbable (3) 25.0% 33.3% 41.0% 28.6% 37.0%
5 8 57 8 78
Most improbable (4) 40.0% 29.2% 20.1% 39.3% 25.6%
8 7 28 11 54
Total 100.0% 100.0% 100.0% 100.0% 100.0%
N=20 N=24 N=139 N=28 N=211
(2.90) (2.88) (2.74) (2.96) (2.80)
In 500 years Very probable (1) 10.0% 4.2% 5.0% 7.1% 5.7%
2 1 7 2 12
Quite probable (2) 10.0% 25.0% 20.1% 14.3% 19.0%
2 6 28 4 40
Rather improbable (3) 20.0% 25.0% 24.5% 25.0% 24.2%
4 6 34 7 51
Most improbable (4) 60.0% 45.8% 50.4% 53.6% 51.2%
12 11 70 15 108
Total 100.0% 100.0% 100.0% 100.0% 100.0%
N=20 N=24 N=139 N=28 N=211
(3.30) (3.13) (3.20) (3.25) (3.21)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square .537 1.429 1.761 2.403 .776
df 3 3 3 3 3
Asymp. Sig. .911 .699 .623 .493 .855

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q5.1 - Does your library have any written guidelines for the collection of digital documents?


Yes. These guidelines are published online. Yes, but these guidelines are not publicly accessible. No, but there are plans to create some. No, and there are no plans to create any. Total
In 5 years Very probable (1) 83.3% 91.7% 100.0% 100.0% 90.9%
10 22 7 1 40
Quite probable (2) 16.7% 8.3% .0% .0% 9.1%
2 2 0 0 4
Rather improbable (3) .0% .0% .0% .0% .0%
0 0 0 0 0
Most improbable (4) .0% .0% .0% .0% .0%
0 0 0 0 0
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=12 N=24 N=7 N=1 N=44
(1.17) (1.08) (1.00) (1.00) (1.09)
In 20 years Very probable (1) 50.0% 41.7% 71.4% 100.0% 50.0%
6 10 5 1 22
Quite probable (2) 33.3% 41.7% 28.6% .0% 36.4%
4 10 2 0 16
Rather improbable (3) 8.3% 16.7% .0% .0% 11.4%
1 4 0 0 5
Most improbable (4) 8.3% .0% .0% .0% 2.3%
1 0 0 0 1
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=12 N=24 N=7 N=1 N=44
(1.75) (1.75) (1.29) (1.00) (1.66)
In 50 years Very probable (1) 33.3% 16.7% 14.3% 100.0% 22.7%
4 4 1 1 10
Quite probable (2) 33.3% 37.5% 57.1% .0% 38.6%
4 9 4 0 17
Rather improbable (3) 16.7% 29.2% 14.3% .0% 22.7%
2 7 1 0 10
Most improbable (4) 16.7% 16.7% 14.3% .0% 15.9%
2 4 1 0 7
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=12 N=24 N=7 N=1 N=44
(2.17) (2.46) (2.29) (1.00) (2.32)
In 100 years Very probable (1) 16.7% 4.2% 14.3% .0% 9.1%
2 1 1 0 4
Quite probable (2) 25.0% 29.2% 14.3% 100.0% 27.3%
3 7 1 1 12
Rather improbable (3) 25.0% 29.2% 42.9% .0% 29.5%
3 7 3 0 13
Most improbable (4) 33.3% 37.5% 28.6% .0% 34.1%
4 9 2 0 15
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=12 N=24 N=7 N=1 N=44
(2.75) (3.00) (2.86) (2.00) (2.89)
In 500 years Very probable (1) 8.3% 4.2% 14.3% .0% 6.8%
1 1 1 0 3
Quite probable (2) 25.0% 20.8% .0% .0% 18.2%
3 5 0 0 8
Rather improbable (3) 8.3% 20.8% 42.9% 100.0% 22.7%
1 5 3 1 10
Most improbable (4) 58.3% 54.2% 42.9% .0% 52.3%
7 13 3 0 23
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=12 N=24 N=7 N=1 N=44
(3.17) (3.25) (3.14) (3.00) (3.20)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 1.613 3.097 2.811 1.356 .349
df 3 3 3 3 3
Asymp. Sig. .657 .377 .422 .716 .951

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q6 - Which software solution do you use (or intend to use) for your digital repository?


Open source software Commercial software Specifically developed software Mixed software Not yet decided Total
In 5 years Very probable (1) 93.3% 76.9% 90.9% 87.5% 88.3% 88.6%
56 20 20 14 68 178
Quite probable (2) 5.0% 15.4% 9.1% 6.3% 9.1% 8.5%
3 4 2 1 7 17
Rather improbable (3) 1.7% .0% .0% .0% 2.6% 1.5%
1 0 0 0 2 3
Most improbable (4) .0% 7.7% .0% 6.3% .0% 1.5%
0 2 0 1 0 3
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=60 N=26 N=22 N=16 N=77 N=201
(1.08) (1.38) (1.09) (1.25) (1.14) (1.16)
In 20 years Very probable (1) 38.3% 34.6% 40.9% 50.0% 40.3% 39.8%
23 9 9 8 31 80
Quite probable (2) 58.3% 46.2% 54.5% 43.8% 45.5% 50.2%
35 12 12 7 35 101
Rather improbable (3) 3.3% 15.4% 4.5% 6.3% 11.7% 8.5%
2 4 1 1 9 17
Most improbable (4) .0% 3.8% .0% .0% 2.6% 1.5%
0 1 0 0 2 3
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=60 N=26 N=22 N=16 N=77 N=201
(1.65) (1.88) (1.64) (1.56) (1.77) (1.72)
In 50 years Very probable (1) 8.3% 19.2% 13.6% 31.3% 11.7% 13.4%
5 5 3 5 9 27
Quite probable (2) 53.3% 42.3% 54.5% 43.8% 48.1% 49.3%
32 11 12 7 37 99
Rather improbable (3) 30.0% 19.2% 22.7% 12.5% 26.0% 24.9%
18 5 5 2 20 50
Most improbable (4) 8.3% 19.2% 9.1% 12.5% 14.3% 12.4%
5 5 2 2 11 25
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=60 N=26 N=22 N=16 N=77 N=201
(2.38) (2.38) (2.27) (2.06) (2.43) (2.36)
In 100 years Very probable (1) 3.3% 15.4% 9.1% 18.8% 6.5% 8.0%
2 4 2 3 5 16
Quite probable (2) 38.3% 15.4% 27.3% 37.5% 24.7% 28.9%
23 4 6 6 19 58
Rather improbable (3) 30.0% 46.2% 45.5% 31.3% 39.0% 37.3%
18 12 10 5 30 75
Most improbable (4) 28.3% 23.1% 18.2% 12.5% 29.9% 25.9%
17 6 4 2 23 52
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=60 N=26 N=22 N=16 N=77 N=201
(2.83) (2.77) (2.73) (2.38) (2.92) (2.81)
In 500 years Very probable (1) 3.3% 11.5% 4.5% 18.8% 3.9% 6.0%
2 3 1 3 3 12
Quite probable (2) 21.7% 11.5% 18.2% 31.3% 14.3% 17.9%
13 3 4 5 11 36
Rather improbable (3) 33.3% 15.4% 27.3% 6.3% 23.4% 24.4%
20 4 6 1 18 49
Most improbable (4) 41.7% 61.5% 50.0% 43.8% 58.4% 51.7%
25 16 11 7 45 104
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=60 N=26 N=22 N=16 N=77 N=201
(3.13) (3.27) (3.23) (2.75) (3.36) (3.22)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 5.173 2.265 3.050 4.724 5.654
df 4 4 4 4 4
Asymp. Sig. .270 .687 .549 .317 .227

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q7 - Which kinds of digital documents do you already archive at your library?


Ready-to-print master files Offline documents Online documents Websites Other types of digital documents
In 5 years Very probable (1) 90.3% 85.0% 92.6% 88.0% 97.3%
56 34 50 22 36
Quite probable (2) 4.8% 12.5% 7.4% 12.0% 2.7%
3 5 4 3 1
Rather improbable (3) 1.6% .0% .0% .0% .0%
1 0 0 0 0
Most improbable (4) 3.2% 2.5% .0% .0% .0%
2 1 0 0 0
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=62 N=40 N=54 N=25 N=37
(1.18) (1.20) (1.07) (1.12) (1.03)
In 20 years Very probable (1) 51.6% 47.5% 46.3% 56.0% 48.6%
32 19 25 14 18
Quite probable (2) 45.2% 47.5% 48.1% 36.0% 43.2%
28 19 26 9 16
Rather improbable (3) 3.2% 2.5% 3.7% 4.0% 8.1%
2 1 2 1 3
Most improbable (4) .0% 2.5% 1.9% 4.0% .0%
0 1 1 1 0
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=62 N=40 N=54 N=25 N=37
(1.52) (1.60) (1.61) (1.56) (1.59)
In 50 years Very probable (1) 12.9% 25.0% 20.4% 36.0% 18.9%
8 10 11 9 7
Quite probable (2) 56.5% 42.5% 44.4% 36.0% 48.6%
35 17 24 9 18
Rather improbable (3) 27.4% 25.0% 25.9% 16.0% 21.6%
17 10 14 4 8
Most improbable (4) 3.2% 7.5% 9.3% 12.0% 10.8%
2 3 5 3 4
Total 100.0% 100.0% 100.0% 100.0% 100.0%
N=62 N=40 N=54 N=25 N=37
(2.21) (2.15) (2.24) (2.04) (2.24)
In 100 years Very probable (1) 3.2% 15.0% 11.1% 24.0% 10.8%
2 6 6 6 4
Quite probable (2) 37.1% 27.5% 29.6% 36.0% 35.1%
23 11 16 9 13
Rather improbable (3) 37.1% 35.0% 31.5% 20.0% 29.7%
23 14 17 5 11
Most improbable (4) 22.6% 22.5% 27.8% 20.0% 24.3%
14 9 15 5 9
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=62 N=40 N=54 N=25 N=37
(2.79) (2.65) (2.76) (2.36) (2.68)
In 500 years Very probable (1) 1.6% 15.0% 7.4% 20.0% 8.1%
1 6 4 5 3
Quite probable (2) 22.6% 17.5% 20.4% 24.0% 24.3%
14 7 11 6 9
Rather improbable (3) 29.0% 22.5% 24.1% 16.0% 21.6%
18 9 13 4 8
Most improbable (4) 46.8% 45.0% 48.1% 40.0% 45.9%
29 18 26 10 17
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0%
N=62 N=40 N=54 N=25 N=37
(3.21) (2.97) (3.13) (2.76) (3.05)

Mann-Whitney U Test: Ready-to-print master files

In 5 years In 20 years In 50 years In 100 years In 500 years
Mann-Whitney U 1350.000 1078.000 1300.500 1322.000 1288.000
Wilcoxon W 2340.000 3031.000 3253.500 2312.000 2278.000
Z -.177 -2.057 -.441 -.282 -.524
Asymp. Sig. (2-tailed) .859 .040 .659 .778 .600

Mann-Whitney U Test: Offline documents

In 5 years In 20 years In 50 years In 100 years In 500 years
Mann-Whitney U 1205.500 1241.000 1170.500 1212.000 1182.000
Wilcoxon W 3416.500 2061.000 1990.500 2032.000 2002.000
Z -1.472 -.578 -1.056 -.738 -.967
Asymp. Sig. (2-tailed) .141 .564 .291 .461 .334

Mann-Whitney U Test: Online documents

In 5 years In 20 years In 50 years In 100 years In 500 years
Mann-Whitney U 1340.000 1337.000 1365.500 1382.000 1403.000
Wilcoxon W 2825.000 2822.000 2850.500 2760.000 2781.000
Z -.798 -.475 -.264 -.146 -.007
Asymp. Sig. (2-tailed) .425 .635 .792 .884 .995

Mann-Whitney U Test: Websites

In 5 years In 20 years In 50 years In 100 years In 500 years
Mann-Whitney U 983.000 881.000 797.500 723.000 791.000
Wilcoxon W 4304.000 1206.000 1122.500 1048.000 1116.000
Z -.433 -1.098 -1.733 -2.257 -1.772
Asymp. Sig. (2-tailed) .665 .272 .083 .024 .076

Mann-Whitney U Test: Other types of digital documents

In 5 years In 20 years In 50 years In 100 years In 500 years
Mann-Whitney U 1143.000 1212.500 1238.000 1187.000 1201.000
Wilcoxon W 1846.000 1915.500 1941.000 1890.000 1904.000
Z -1.746 -.476 -.276 -.622 -.538
Asymp. Sig. (2-tailed) .081 .634 .782 .534 .591

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q8 - How would you assess your digital repository in terms of technical, structural and organizational quality, compared to other libraries of a similar size?


Better Comparable to others Worse Total
In 5 years Very probable (1) 90.9% 92.3% 80.0% 90.5%
30 48 8 86
Quite probable (2) 9.1% 5.8% 10.0% 7.4%
3 3 1 7
Rather improbable (3) .0% 1.9% .0% 1.1%
0 1 0 1
Most improbable (4) .0% .0% 10.0% 1.1%
0 0 1 1
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=33 N=52 N=10 N=95
(1.09) (1.10) (1.40) (1.13)
In 20 years Very probable (1) 60.6% 40.4% 10.0% 44.2%
20 21 1 42
Quite probable (2) 33.3% 53.8% 90.0% 50.5%
11 28 9 48
Rather improbable (3) 3.0% 5.8% .0% 4.2%
1 3 0 4
Most improbable (4) 3.0% .0% .0% 1.1%
1 0 0 1
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=33 N=52 N=10 N=95
(1.48) (1.65) (1.90) (1.62)
In 50 years Very probable (1) 27.3% 11.5% 10.0% 16.8%
9 6 1 16
Quite probable (2) 39.4% 55.8% 50.0% 49.5%
13 29 5 47
Rather improbable (3) 27.3% 23.1% 40.0% 26.3%
9 12 4 25
Most improbable (4) 6.1% 9.6% .0% 7.4%
2 5 0 7
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=33 N=52 N=10 N=95
(2.12) (2.31) (2.30) (2.24)
In 100 years Very probable (1) 18.2% 3.8% 10.0% 9.5%
6 2 1 9
Quite probable (2) 21.2% 38.5% 30.0% 31.6%
7 20 3 30
Rather improbable (3) 36.4% 32.7% 30.0% 33.7%
12 17 3 32
Most improbable (4) 24.2% 25.0% 30.0% 25.3%
8 13 3 24
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=33 N=52 N=10 N=95
(2.67) (2.79) (2.80) (2.75)
In 500 years Very probable (1) 12.1% 3.8% 10.0% 7.4%
4 2 1 7
Quite probable (2) 18.2% 23.1% 10.0% 20.0%
6 12 1 19
Rather improbable (3) 15.2% 30.8% 20.0% 24.2%
5 16 2 23
Most improbable (4) 54.5% 42.3% 60.0% 48.4%
18 22 6 46
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=33 N=52 N=10 N=95
(3.12) (3.12) (3.30) (3.14)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 1.636 6.384 1.052 .167 .643
df 2 2 2 2 2
Asymp. Sig. .441 .041 .591 .920 .725

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q9 - Which department(s) is (are) responsible for the long-term preservation of digital documents within the organizational structure of your library?


A new department An existing department Several departments Total
In 5 years Very probable (1) 93.1% 86.9% 89.8% 89.1%
27 73 88 188
Quite probable (2) 6.9% 8.3% 8.2% 8.1%
2 7 8 17
Rather improbable (3) .0% 2.4% 1.0% 1.4%
0 2 1 3
Most improbable (4) .0% 2.4% 1.0% 1.4%
0 2 1 3
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=29 N=84 N=98 N=211
(1.07) (1.20) (1.13) (1.15)
In 20 years Very probable (1) 37.9% 38.1% 41.8% 39.8%
11 32 41 84
Quite probable (2) 58.6% 51.2% 46.9% 50.2%
17 43 46 106
Rather improbable (3) 3.4% 10.7% 8.2% 8.5%
1 9 8 18
Most improbable (4) .0% .0% 3.1% 1.4%
0 0 3 3
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=29 N=84 N=98 N=211
(1.66) (1.73) (1.72) (1.72)
In 50 years Very probable (1) 13.8% 11.9% 14.3% 13.3%
4 10 14 28
Quite probable (2) 48.3% 48.8% 52.0% 50.2%
14 41 51 106
Rather improbable (3) 24.1% 27.4% 21.4% 24.2%
7 23 21 51
Most improbable (4) 13.8% 11.9% 12.2% 12.3%
4 10 12 26
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=29 N=84 N=98 N=211
(2.38) (2.39) (2.32) (2.36)
In 100 years Very probable (1) 10.3% 4.8% 10.2% 8.1%
3 4 10 17
Quite probable (2) 27.6% 29.8% 29.6% 29.4%
8 25 29 62
Rather improbable (3) 27.6% 39.3% 37.8% 37.0%
8 33 37 78
Most improbable (4) 34.5% 26.2% 22.4% 25.6%
10 22 22 54
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=29 N=84 N=98 N=211
(2.86) (2.87) (2.72) (2.80)
In 500 years Very probable (1) 6.9% 3.6% 7.1% 5.7%
2 3 7 12
Quite probable (2) 24.1% 20.2% 16.3% 19.0%
7 17 16 40
Rather improbable (3) 20.7% 19.0% 29.6% 24.2%
6 16 29 51
Most improbable (4) 48.3% 57.1% 46.9% 51.2%
14 48 46 108
Total (Mean) 100.0% 100.0% 100.0% 100.0%
N=29 N=84 N=98 N=211
(3.10) (3.30) (3.16) (3.21)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 1.052 .192 .508 1.136 1.461
df 2 2 2 2 2
Asymp. Sig. .591 .909 .776 .567 .482

Q11 - Please estimate the probability that contemporary digital documents will still be available and usable in future, in your own opinion? * Q10 - How is the long-term preservation of digital documents financed at your library?


Exclusively from the library's own budget Mainly from the library's own budget Mainly from third-party funds Exclusively from third-party funds Ratios are approximately equal Total
In 5 years Very probable (1) 96.6% 90.7% 73.9% 100.0% 95.0% 91.2%
57 68 17 5 19 166
Quite probable (2) 3.4% 6.7% 21.7% .0% 5.0% 7.1%
2 5 5 0 1 13
Rather improbable (3) .0% 1.3% .0% .0% .0% .5%
0 1 0 0 0 1
Most improbable (4) .0% 1.3% 4.3% .0% .0% 1.1%
0 1 1 0 0 2
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=59 N=75 N=23 N=5 N=20 N=182
(1.03) (1.13) (1.35) (1.00) (1.05) (1.12)
In 20 years Very probable (1) 49.2% 34.7% 21.7% 40.0% 60.0% 40.7%
29 26 5 2 12 74
Quite probable (2) 40.7% 56.0% 69.6% 60.0% 35.0% 50.5%
24 42 16 3 7 92
Rather improbable (3) 10.2% 6.7% 8.7% .0% 5.0% 7.7%
6 5 2 0 1 14
Most improbable (4) .0% 2.7% .0% .0% .0% 1.1%
0 2 0 0 0 2
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=59 N=75 N=23 N=5 N=20 N=182
(1.61) (1.77) (1.87) (1.60) (1.45) (1.69)
In 50 years Very probable (1) 23.7% 9.3% 8.7% .0% 20.0% 14.8%
14 7 2 0 4 27
Quite probable (2) 45.8% 50.7% 47.8% 80.0% 60.0% 50.5%
27 38 11 4 12 92
Rather improbable (3) 22.0% 26.7% 26.1% .0% 15.0% 23.1%
13 20 6 0 3 42
Most improbable (4) 8.5% 13.3% 17.4% 20.0% 5.0% 11.5%
5 10 4 1 1 21
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=59 N=75 N=23 N=5 N=20 N=182
(2.15) (2.44) (2.52) (2.40) (2.05) (2.31)
In 100 years Very probable (1) 15.3% 6.7% 4.3% .0% .0% 8.2%
9 5 1 0 0 15
Quite probable (2) 27.1% 30.7% 21.7% 20.0% 50.0% 30.2%
16 23 5 1 10 55
Rather improbable (3) 35.6% 36.0% 43.5% 60.0% 35.0% 37.4%
21 27 10 3 7 68
Most improbable (4) 22.0% 26.7% 30.4% 20.0% 15.0% 24.2%
13 20 7 1 3 44
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=59 N=75 N=23 N=5 N=20 N=182
(2.64) (2.83) (3.00) (3.00) (2.65) (2.77)
In 500 years Very probable (1) 10.2% 4.0% 8.7% .0% .0% 6.0%
6 3 2 0 0 11
Quite probable (2) 23.7% 24.0% 8.7% 20.0% 15.0% 20.9%
14 18 2 1 3 38
Rather improbable (3) 20.3% 21.3% 26.1% 20.0% 45.0% 24.2%
12 16 6 1 9 44
Most improbable (4) 45.8% 50.7% 56.5% 60.0% 40.0% 48.9%
27 38 13 3 8 89
Total (Mean) 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
N=59 N=75 N=23 N=5 N=20 N=182
(3.02) (3.19) (3.30) (3.40) (3.25) (3.16)

Kruskal Wallis Test

In 5 years In 20 years In 50 years In 100 years In 500 years
Chi-Square 11.561 7.557 6.931 3.472 1.882
df 4 4 4 4 4
Asymp. Sig. .021 .109 .140 .482 .757