KEYWORDS

1 INTRODUCTION  
1.1 Our Contributions  
1.2 Related Works  
1.3 Our Findings  

2 UNDERSTANDING THE DATA TRADING VALUE CHAIN  

3 A TAXONOMY OF DATA TRADING BUSINESS MODELS  
3.1 The Universe of Data Trading Entities  
3.2 Classifying DTEs Depending on Their Customers  
3.3 Data Trading Business Models  

4 DEEPER INSIGHTS INTO DATA TRADING  

5 DATA MARKETPLACES IN THE RESEARCH COMMUNITY  

6 OPEN CHALLENGES  

7 SUMMARY