What Do We Mean By Binary Interchange of XML?
- Sender serializes an XML document
 - Result can be transported to a different machine or process
 - The interchange format here is currently textual XML
 - Receiver recreates the in-memory XML document
 - Using compression (e.g. gzip) often makes the text format file from 15% to 85% smaller
 - XML-specific binary formats are claimed to be more efficient.