Chapter Thirteen. Invoices, Credit Cards, and Discounts

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Chapter Thirteen. Invoices, Credit Cards, and Discounts

SAM DECIDES IT IS TIME TO ADD THE ABILITY TO INVOICE CUSTOMERS and charge those invoices to credit cards. We explore interfaces to external credit card processors. We add computation of customer discounts in terms that Sam can understand. We also revisit security and privacy in the context of these changes.

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Prefactoring
Prefactoring: Extreme Abstraction, Extreme Separation, Extreme Readability
ISBN: 0596008740
EAN: 2147483647
Year: 2005
Pages: 175
Authors: Ken Pugh

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