|
How you explain the SOAP data versus metadata
SOAP Interview Questions and Answers
(Continued from previous question...)
How you explain the SOAP data versus metadata
SOAP is like a set of Russian dolls in its layers of encapsulation. There are the HTTP
headers, then the SOAP envelope, and then the SOAP body. Each layer provides
metadata for the immediately enclosed layer.
Metadata is information that helps an application make sense of the important data
being transported. For instance, the HTTP header specifies the character encoding as
metadata for the HTTP body. This makes sure that the application properly translates
the stream of bits into a series of characters.
The outermost portion of the HTTP body is the SOAP envelope. This contains the
SOAP-ENV:encodingStyle attribute which specifies the structure of the actual
request. This metadata tells the application how to make sense of the XML elements
and attributes within the body, which make up the actual request.
(Continued on next question...)
Other Interview Questions
| 