If you were analysing the architecture of a shopping cart on an eCommerce website that has interfaces to a banking app for credit card processing and a Shopify inventory management service, you would expect to find:     Rest API's for transfering credit card and inventory data on URI's in plain text     API's implementing platform web services for the Bank and Shopify connections using WSDL     Synchronised, sharded databases implementing named pipe connections     Cached local SQL mirrors of the Bank and the Shopify data sets for the eCommerce site

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