Microservices architecture, layered structure, hexagonal ports and adapters, event-driven design, monolithic architecture, service-oriented architecture, distributed systems, cloud computing, Kubernetes deployment, containerization, Docker containers, scalable systems, load balancing, API gateways, message queues, event buses, modular design, high cohesion, loose coupling, abstraction layers, interface segregation, dependency inversion principle, facade patterns, business capabilities, technical infrastructure, enterprise integration patterns, real-time data processing, IoT device integration, complex event processing, big data analytics, NoSQL databases, RESTful APIs, GraphQL queries.