Going serverless

Once the enterprise has adopted the PaaS to build the application, the next step is to abstract out the application logic as a series of smaller functions and deploy them. These functions are invoked as a reaction to an event from the user or agent, which results in these functions computing the incoming events and giving a result back. This is the highest level of abstraction, where the application has been divided into a series of functions and these functions are deployed independently of each other. The functions communicate with each other using asynchronous communication models. Cloud computing platforms provide features such as AWS Lambda and Azure Functions for going serverless.