Impact of reusability conditions on data consumption

In order to make a fair comparison between the sampled data for infomediaries in years 2011 and 2012 (, 2011;, 2012) and the sampled data sources, it is necessary to filter those datasets which were not available for commercial reuse (Levels 1, 2 and 3 described in Legal reusability). This filtering is required due to the fact that products and services of infomediaries use the data which are allowed to be used commercially. Fortunately, it is not a very restrictive condition because as we have presented in next Illustration,


88% of sampled data sources meet this requirement. Therefore now a full comparison with MELODA reusability index makes no sense as one out of three of the dimensions (Legal) has been filtered. With this restriction in place results are shown in the next graphs for the other dimensions access and technical standards.

Access dimension

This graph represents the average of the MELODA index in Y-axis, vs the increase of use of information as described in Illustration 16 in the X-axis, trying to find a relation between the better reusability of information (access dimension) and the increase of its use.


Next graph shows the same results of this, but with a split of the data sources according to their scope. Therefore 3 sets of points are determined for every scope. Additionally a trend line is determined and plotted in order to make easier to determine if there is a relation between reusability (Access dimension) and data consumption.


Next illustration (Illustration 20) is similar to Illustration 18 but instead of showing access dimension reflects technical standard dimension in Y-axis. X-axis, is the increase of use of information by infomediaries as that illustration.

Similarly Illustration 21 is the replica of Illustration 19 changing access dimension by technical standard dimension.

Technical Standard


Although both dimensions seem to have some kind of positive relation, a deeper analysis of data shows that while access dimension presents a robust positive relation, technical standard does not.



Not only because when we split into the different scopes, technical standard presents, in the case of regional data sources, a negative slope but also when we eliminate any of the points (i.e. the legal information point) relation remains in the case of access and not in the technical standard.

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