State Transitions in a SOAP-based Network

Recall the Parts Depot example. The parts list resource returns this SOAP document:

<?xml version="1.0"?>

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">

<soap:Body>

<p:getPartsListResponse xmlns:p="http://www.parts-depot.com">

<Parts>

<Part-ID�<Part-ID>

</Parts>

<p:getPartsListResponse>

</soap:Body>

</soap:Envelope>

The SOAP document contains no hyperlinks. In the Web world this

document is an island, cut off from the rest of the Web. Information

about "what to do next" must be obtained elsewhere, i.e., out-of-band.