In this article, Matthew Lucas discusses the challenges of managing complexity in software development, drawing parallels with managing a traditional farm. He emphasizes the importance of separating the different functional areas of an application to make it more manageable and introduces the Single Responsibility Principle. Lucas also explores layered architecture as a common method for managing separation of concerns and its drawbacks, such as blurred boundaries and a limited focus on a single dimension of architecture. In response, he proposes a new approach called hexagonal architecture, which places the core business logic at the center and externalizes layers for different concerns. Lucas concludes by highlighting the benefits of hexagonal architecture and its flexibility in adapting to new requirements and integrations.
