1

The requestor application builds a C# message containing a lookup request for customer information.

2

The requestor sends a message to the server application. The message contains the information needed to lookup a customer record.

3

The message selector ensures that only messages from the selected record are passed to the server.

4

The server receives the message requesting detailed customer information (the complete customer record).

5

The server parses the request message, builds a database query, and executes the database query against a simple in-memory database containing customer records.

6

The server maps the query results to a reply message and links the reply message to the original request.

7

The server sends the reply back to the requestor application.

8

The requestor extracts the customer data from the reply.

9

The requestor sends the customer data to the console.