This chapter uses a mock scenario to understand a client’s problems with an application critical for their business. You will see how a workshop-style meeting, called Event Storming, helps software developers understand the customer’s business and their application in need of help. You will also learn about Domain-Driven Design (DDD) and how developers can use it to prepare for decomposing a monolithic application into microservices. To head in the right direction, we will start with a brief introduction to the customer’s business. This introduction will help you understand a little about the customer’s struggles, which will aid with an example of analyzing the need for microservices.