Verification of Object Relational Maps

Authors:
Krishna K. Mehra;Sriram K. Rajamani;A. Prasad Sistla;Sumit K. Jha
Affiliations:
Microsoft Research India;Microsoft Research India;University of Illinois at Chicago;Carnegie Melon University
Venue:
SEFM '07 Proceedings of the Fifth IEEE International Conference on Software Engineering and Formal Methods
Year:
2007

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Abstract

Enterprise software systems need to deal with two dominant data models. While object oriented languages (such as Java, C#, C++) are the dominant ways to write business logic, relational databases are the dominant ways to store data. Object-Relational (OR) maps are widely used to mediate between these two data models. We present a system to verify correctness of OR maps. We formulate simple correctness conditions for OR maps, and convert these conditions to validity of formulas in first order logic. We have built a verification tool called ROUNDTRIP that is able to both validate and find errors in OR maps defined in the ESQL language of the Microsoft EDM data model.