Tracing data transformations: a preliminary report

Authors:
Gang Qian;Yisheng Dong
Affiliations:
School of Information Engineering, Nanjing University of Finance & Economics, Nanjing, China;Department of Computer Science and Engineering, Southeast University, Nanjing, China
Venue:
DASFAA'07 Proceedings of the 12th international conference on Database systems for advanced applications
Year:
2007

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Abstract

We study a novel problem: tracing data transformations. That is, for a particular target data type, e.g., obtained from the output schema, we trace over the transformation specifications and extract from them the fragments that are exactly used to compute instance data of the type. Our work provides a piecemeal fashion to understand a transformation semantic, and hence would be useful for users to test, debug, and refine the transformation specifications.