PowerCenter Web Services Provider.
Use PowerCenter Web Services Provider to expose transformation logic as a service through the Web Services Hub and write client applications to run real-time web services. You can create a service mapping to receive a message from a web service client, transform it, and write it to any target PowerCenter supports. You can also create a service mapping with both a web service source and target definition to receive a message request from a web service client, transform the data, and send the response back to the web service client.