A method for a data capturing and exchange system. The data capturing and exchange system has a plurality of devices in a sub-network and a network server connected to the sub-network. The method includes capturing an unstructured data record of a document on a device, collecting metadata associated with the unstructured data record; determining a recipient for the unstructured data record in a health information exchange, and composing a data message containing the unstructured data record. The method also includes obtaining the composed data message containing the unstructured data record, packing the composed data message into a packed message containing a structured data record corresponding to the unstructured data record, and sending the packed message to the recipient in the HIE can receive and recognize the document.