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H. Truong, G. Gangadharan, M. Comerio, S. Dustdar, F. De Paoli:
"On Analyzing and Developing Data Contracts in Cloud-based Data Marketplaces";
Talk: 2011 IEEE Asia-Pacific Services Computing Conference, APSCC 2011, Jeju Island, South Korea; 2011-12-12 - 2011-12-15; in: "Proceedings of the 2011 IEEE Asia-Pacific Services Computing Conference, APSCC 2011", IEEE Computer Society, (2011), ISBN: 978-0-7695-4624-7; 174 - 181.

Currently, rich and diverse data types have been increasingly provided using the Data-as-a-Service (DaaS) model,a form of cloud computing services. However, data offered by DaaS are constrained by several data concerns that, if not automatically being reasoned properly, will lead to a wrong way of using them. In this paper, we support the assumption that data concerns should be explicitly modeled and specified in data contracts to support concern-aware data selection and utilization. Instead of relying on a specific definition of data contracts, we analyze contemporary data contracts and we present an abstract model for data contracts. Based on the abstract model, we propose several techniques for evaluating data contracts that can be integrated into data service selection and composition frameworks. We also illustrate our approach with some realworld scenarios.

http://dx.doi.org/10.1109/APSCC.2011.65

Project Head Schahram Dustdar:
Cloud computing research lab

Project Head Reinhard Pichler:
Service-orientierte Datenintegration