Using Amazon web services for elasticity and scale to build cloud applications.
Traditional IT environments that are built using physical servers can only scale and grow by buying new hardware and software and taking time to install and rack the hardware, configure the software and the application. If/when the excess capacity is not needed the servers stand idle consuming power, cooling and rackspace. This is inefficient and a waste of money.
Amazon Web Services (AWS) allows customers to scale using elastic demand. Just like a rubber elastic band stretches to accommodate more items , AWS provides elastic computing to allow a customer to scale up (or down); to grow or shrink their architecture quickly efficiently with minimal intervention.
The following is a summary of an AWS whitepaper and webinar that describes how you can use AWS to architect your system for the cloud.

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