Your Coffee Shop Uses Cloud Computing

IT applications and physical businesses often face similar challenges. Customers have to be served quickly; throughput and availability should increase. Concepts such as redundancy and parallelism are inherent in the architectural design of both worlds. However, the complexity of IT systems can hinder them from following architectural principles and design rules to obtain highly scalable and fault-resilient applications. The authors cover the architectural design phases of a cloud application and describe common best practices relevant in each phase. They use a coffee shop as a real-world analogy to avoid IT complexity.