*** Designing and Evaluating Control Mechanisms for Sovereign Data Sharing through a Meta-Platform for Data Marketplaces ***
Authors: Antragama Ewa Abbas (1)
(1)Section Information and Communication Technology, Department of Engineering Systems and Services, Faculty of Technology, Policy, and Management, Delft University of Technology, Delft, the Netherlands 

Corresponding author: Antragama Ewa Abbas

Contact Information:
A.E.Abbas@tudelft.nl

Delft University of Technology - Faculty of Technology, Policy and Management
P.O. Box 5015 
2600 GA Delft
The Netherlands

***General Introduction***

These 1) online appendices and 2) research data serve as supplementary materials for the dissertation titled “Designing and Evaluating Control Mechanisms for Sovereign Data Sharing through a Meta-Platform for Data Marketplaces.”

The online appendices include:

	Online Appendix 1: Literature List – The analyzed literature for reviewing control mechanisms to enhance data sovereignty in Chapter 6.
	
	Online Appendix 2: Prototype Evaluation - Details on the evaluation process of the prototype in Chapter 7.
	
	Online Appendix 3: Prototype Interfaces – The full prototype interfaces developed for Chapter 7.

	Online Appendix 4: Data Sovereignty Measurement Model - Methodology and statistical analyses for creating a data sovereignty measurement model in Chapter 8.

	Online Appendix 5: Controlled Experiment - Explanation of prototype manipulations used in the controlled experiments in Chapter 8. 

The research data contains raw datasets (anonymized survey data) for conducting experiments (Chapter 8) and structural equation modeling (Chapter 9).

*** Raw dataset description ***

Raw data 
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This sheet contains information about the raw data used for the analysis.

Processed
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This sheet contains processed raw data for analysis, including each construct’s average and the inversion of negative scales.

Measurement validity
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This sheet details statistical testing for the validity and reliability of the measurement model. 

Manipulation checks
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This sheet details statistical testing for manipulation checks employed in the controlled experiment. 

Assumption checks
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This sheet details statistical testing for assumption checks before conducting the experiment. 