All messages in BizTalk are represents in XML. One important aspect of all XML documents is its namespace. Briefly, a namespace allows you describe the Student (for example) in one way without affecting anyone else’s description, possible student can mean different things to other applications, Second important aspect of all XML document is the name of document root node.
For example namespace of student XML is
urn:schemas-BiztalkHQ-net:Student:mapcontext:1
and Root Node of Schema is
Student .
The combination of message namespace and name of root node are represented as:
urn:schemas-citrite-net:licensing:mapcontext:1#Student
The hash symbol (#) separates the namespace from the name of the root node.