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Cloud Computing and SOA Convergence in Your Enterprise: A Step ...

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Services Provide the Mov<strong>in</strong>g Parts 115<br />

Products<br />

PNum (char 30)<br />

PDesc (char 40)<br />

PPrice (num 10)<br />

Sales<br />

CNum (char 30)<br />

PNum (char 30)<br />

SAmount (num 10)<br />

And we have the follow<strong>in</strong>g c<strong>and</strong>idate services:<br />

Add_Customer<br />

Del_Customer<br />

Update_Customer<br />

Add_Account<br />

Update_Account<br />

Add_Product<br />

Del_Product<br />

Update_Product<br />

Record_Sales<br />

Update_Sales<br />

Look<strong>in</strong>g at just the services that touch the customer table, we can say that<br />

Add_Customer<br />

Del_Customer<br />

Update_Customer<br />

are bound to:<br />

Customers<br />

CNum (char 30)<br />

CName (char 30)<br />

CAddress (char 40)<br />

CCity (char 30)<br />

CZip (char 5)<br />

We have identified services <strong>and</strong> l<strong>in</strong>ked them to an operational database.<br />

Now we have the <strong>in</strong>formation <strong>and</strong> the behavior that acts on that <strong>in</strong>formation.<br />

F<strong>in</strong>ally, the service model is the list<strong>in</strong>g of all services from the c<strong>and</strong>idate<br />

services list that are relevant <strong>and</strong> thus selected as services for our architecture.<br />

Moreover, they are decomposed <strong>and</strong> ordered so all services dependent

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