Compensation with dependency in Web services composition

The nature of heterogeneity, autonomy and long life of Web services makes traditional ACID based models improper for transaction-safe Web services composition. Compensation is becoming increasingly important as more complex service-based applications are deployed. Yet most current treatments neglect the dependency information underlying compensated Web services. In this paper, we show how dependencies potentially affect the composite Web services. We present an extended model which takes business rules into account and provides the preferred compensation selection from user's view.