Web Services Protocol stack

Hi Guys Im trying to come up with examples for the different layers of the web services protocol stack below please carry on with the scenario is used in the the first two layers for the last two layers in blue

Discovery Layer

Scenario: Ok as you know the UDDI is responsible for the registry, I want to find a supplier for my restraint, which is within this registry. I have found my supplier, now I wish to purchase some linen, so I move to the Description layer which looks after what I have purchased.

Description Layer

Scenario: At this point a WSDL file was created, this as you know keeps a description of messages, sent by the web service, in this example these messages were formed by me purchasing some linen for the restaurant. The flow description file tells you which messages do what, e.g. one message creates a cart, another message adds items to it, after which another message causes checkout. The shopping cart, credit card and proof – of – transmission services are all formally described using this.

Messaging Layer

Please Insert a relevant scenario for this layer carrying on from the linen example above

Transport Layer

Please Insert a relevant scenario for this layer carrying on from the linen example above

Thanks a million

John

Messaging Layer

Scenario: SOAP is one of message specification. when people write a letter, they always write address, reciever etc firstly, then it's body, finally the regards. So everybody obey to this rule and can understand the each other better.

Transport Layer

Scenario: when sending letters, it follow the well known procedual: drop it to mail box. letter carrier collect the letters and send to post office then send to the destinations. in case no reciver was found, the letter may send back to you and tell you that reciver notfound. this protocal make us communicate conveniently