Hii Carl, Thanks, for the rply. I go through the documentation and instructions of OpenHIM. It says it only works for MongoDB. But I don't want to convert my xml documents to JSON format as supported by MongoDB. Is OpenHIM support BaseX or is there any other tool which capture my incoming requests or queries before it hits the database server. Kindly, answer for the same. I am very thankful to you. Regards, Prabhjeet Kaur