Microservices are a structural approach to building applications in which individual functions operate independently, allowing for improved productivity, resiliency, and scalability by splitting complex applications into smaller, interconnected services. This enables complex applications to be easily developed and delivered, and is particularly beneficial in today's fast-paced IT landscape where end users expect dynamic yet consistent experiences across a range of devices. With microservices, each individual function can operate independently without negatively impacting the other functions or the overall application, making it easier to update and maintain individual components without affecting the entire application.