Web services interaction models, part 1: Current practice

The problems related to web services interaction models were discussed. The problems include semanatic mismatches, data type mapping between the systens, service granularity issue and state management. Failure to properly abstract the object system while exposing it to a web service was also reported. The analysis suggests creation of a stateless object that wraps the entire session oriented interaction model and exposing that object as a web service to be a better approach.