# Multidimensional Study on Users' Evaluation of the KRAKEN Personal Data Sharing Platform
## 3 Results
### Health or Education Data Management  
Participants to the health pilot were asked \"Would you trust a platform like KRAKEN to share personal data?\" In response, seven participants expressed interest and trust in the platform while five had some concerns related to security and privacy of sharing data, due to a lack of understanding of the privacy preserving technology supporting it. Those who were interested expressed trust in the blockchain technology behind the platform and in the KRAKEN consortium, as it is a publicly funded project supported by the European Commission. Those who expressed concerns mentioned a lack of transparency in the way personal data are protected and treated by KRAKEN; they asked for clearer information on the entities supporting the project as well as clearer and more accessible explanations on the mechanisms ensuring privacy and security of data. We also asked participants \"Would you be interested to use KRAKEN for providing/consuming data products like the ones you have seen provided by the KRAKEN prototype? Why or why not?\" Four participants said they were very interested in consuming data through KRAKEN, three had a stronger interest for providing data through the platform, and five said they were \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Question** & \multicolumn{6}{c}{**Type of Response**} \\ \hline  & **A a** & **SE b** & **NR c** & **D d** & **SD e** & **AR f** \\ \hline
1.1 & 1 & 1 & - & - & - & 1 \\
1.2 & - & 2 & - & 1 & - & - \\
1.3 & 1 & - & - & - & - & 2 \\ \hline
2.1 & 1 & - & 1 & - & - & 1 \\
2.2 & 2 & - & - & - & - & 1 \\ \hline
3.1 & 2 & 1 & - & - & - & - \\
3.2 & - & 3 & - & - & - & - \\
3.3 & - & 3 & - & - & - & - \\ \hline
4.1 & - & - & - & - & - & 3 \\ \hline
5.1 & - & - & - & 2 & 1 & - \\
5.2 & - & 2 & - & - & - & 1 \\ \hline \hline \end{tabular}  
* A: Indicated agreement b SE: Provided significant example suggesting agreement. c NR: Did not indicate agreement or dissent (i.e., nonresponse or did not know). d D: Indicated dissent. e SD: Provided significant example suggesting dissent. f AR: Ambivalent response.  
\end{table} 
Table 4: Participants’ responses in the education pilot evaluation. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Question** & \multicolumn{6}{c}{**Type of Response**} \\ \hline  & **A a** & **SE b** & **NR c** & **D d** & **SD e** & **AR f** \\ \hline
1.1 & 3 & 4 & - & - & 1 & 4 \\
1.2 & 6 & 1 & - & - & - & 5 \\ \hline
2.1 & 3 & 8  
potentially interested to use KRAKEN for sharing data if the platform was able to ensure security, privacy, and quality of data sharing. Most participants thought KRAKEN should guarantee that the personal data shared are reliable and accurate as well as ensure that usage of the data shared is compliant with the goals and privacy settings stated by the data provider when offering access to a data product. Participants to the education pilot were asked \"Would you trust a platform like KRAKEN to share personal data?\" In response, two participants said they would trust KRAKEN since they appreciated the concept behind the KRAKEN solution, but they would trust it more if the user interaction with the prototype would be improved. One participant stressed the fact that the problems they met in using the prototype decreased their trust in the system, but generally they were more in favor of using open access, source code transparent systems. We asked participants \"Would you be interested to use KRAKEN for providing/consuming data products like the ones you have seen provided by the KRAKEN prototype? Why or why not?\" Two participants said they would be interested to share educational data through the platform, while one mentioned that the KRAKEN concept and use case is much needed, since recruiting companies and employers might be interested to access more easily and reliably these data through the data marketplace. One participant initially said they did not want to provide access to their education data through a marketplace.