Title :
XQuery meets Datalog: Data Relevance Query for workflow trustworthiness
Author_Institution :
CSIRO ICT Centre, Marsfield, NSW, Australia
Abstract :
We propose data relevance query as a comprehensive way to help understand data relations built during execution of workflows. Correct data relation is critical for trusting workflow systems. The language RQL (Relevance Query Language) is designed for users to write relevance query declaratively. RQL combines Datalog into XQuery, such that it has the expressive control structures as XQuery and also has the deductive ability of Datalog. We use Java bytecode as a sample language to demonstrate how relevance facts can be captured. The captured relevance facts are then queried to understand how data are processed by bytecode programs.
Keywords :
Australia; Data processing; Database languages; Engines; Java; Virtual machining;
Conference_Titel :
Research Challenges in Information Science (RCIS), 2010 Fourth International Conference on
Conference_Location :
Nice, France
Print_ISBN :
978-1-4244-4839-5
Electronic_ISBN :
2151-1349
DOI :
10.1109/RCIS.2010.5507376