What software application architecture allows teams to iterate quickly and to develop software applications to scale rapidly?

Serverless architecture offloads server management to a cloud provider, which can aid rapid iteration and scaling, but it's a deployment model often used with microservices, not the fundamental architecture style for rapid development itself.

Container architecture provides packaging and isolation for applications, which facilitates microservices and rapid deployment, but it is a deployment technology rather than a core application architecture style.

Service-Oriented Architecture (SOA) is an older architectural style that emphasizes reusable services but often involves more tightly coupled services and shared resources compared to microservices, making rapid iteration and independent scaling more challenging.

Micro-service architecture structures an application as a collection of loosely coupled, independently deployable services, each managing its own data and logic. This modularity allows different teams to develop, deploy, and scale their services independently, leading to faster iteration cycles and the ability to scale specific parts of an application as needed.