During my involvement in a EU-funded project called CREDENTIAL, a study was conducted concerning a software enabling users to get their data visualized by importing data from services such as Google. The software – called Data Track – would be able to display navigational data from the imported data and drawing lines between the logged locations. Similar to Google’s actual timeline feature.
After three iterations of usability tests and wrapping up a paper, this later on was considered as the pilot study in the last version of the paper. You can find the pilot study paper I was a part of here. The final version can be found here.
Karegar, F., Pulls, T., & Fischer-Hübner, S. (2016). Visualizing Exports of Personal Data by Exercising the Right of Data Portability in the Data Track-Are People Ready for This?. In Privacy and Identity Management. Facing up to Next Steps (pp. 164-181). Springer International Publishing.