Passing Variable Types back to clients

[ScottReynolds]

I am currently working on a WS project where we want to execute a varable
action based on the incoming message. e.g. I would have an arguement in the
incoming message called action Name that would state which action to
execute.

I have a project with about 20 services but only three external web
services. Two service for discovery and one for execution. These webservices
reflect on the underlying types to declare ther definitions to a client.

Based on that incoming message I want to return a xml document that looks
similar to the following:

<response>
<actionName>TestAction</Action>
<result>Completed</result>
<payload>
<Tests>
<Test name="SampleTest" result="passed" time="123">
<Test name="SampleTest" result="passed" time="123">
<Test name="SampleTest" result="passed" time="123">
<Test name="SampleTest" result="passed" time="123">
<Test name="SampleTest" result="passed" time="123">
</Tests>
</payload>
</response>

Payload is a variable xml Document and I have attached that document by
using the default serialization mechanisms and payload is declare on the
outgoing type as a XmlDocument

The issue I have with this solution is that there is no XSD defined for the
payload document as it is always changing. Is the lack of XSD an issue?

Should for each of the element in payload provide a name space reference?

Scott.