Monday, 26 November 2007

Data Processing

Transaction Processing: Someone wants to buy a book on amazon. (Because transaction processing is when a deal is made between a company and customer, not only when buying goods. It doesn't need real-time; if you order a book that is sold out, you'll still eventually get an order of the book, transferring money).

Real-time Processing: Someone wants to buy a ticket to V festival. (Because the database behind the website needs to be updated immediately, for example bookings, and the data has to be as accurate as possible. An issue with something like a cinema is that if more than one person buys the same ticket then it will cause hassle - the database needs to be updated asap, paypal is real-time processing).

Batch Processing: Someone wants to pay their gas bill. (Because there is no human intervention. There is no end product; just a piece of paper that gets printed off automatically and sent to the customer, teacher marking homework).

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