What are AWS Cloud Design Patterns?

The AWS Cloud Design Patterns (CDP) are a collection of solutions and design ideas for using AWS cloud technology to solve common systems design problems. To create the CDPs, we reviewed many designs created by various cloud architects, categorized them by the type of problem they addressed, and then created generic design patterns based on those specific solutions. Some of these problems could also be addressed using traditional data-center technology, but we have included cloud solutions for these problems because of the lower cost and greater flexibility of a cloud-based solution.

http://en.clouddesignpattern.org/index.php/Main_Page