Description: Service Layer Architecture is a design pattern that organizes services into distinct layers, allowing for better separation of concerns and facilitating the scalability and maintenance of complex systems. This approach is based on the idea of dividing the functionality of an application into distinct layers, where each layer has a specific responsibility and communicates with adjacent layers. Typically, layers such as presentation, business, and data access can be identified. The presentation layer handles user interaction, the business layer contains application logic, and the data access layer manages communication with databases or external services. This modular structure not only improves code organization but also allows developers to work on different layers independently, facilitating collaboration and the implementation of changes. Additionally, service layer architecture promotes component reuse, as layers can be developed and tested in isolation. In an agile development environment, this pattern is especially valuable as it allows for rapid iterations and better adaptation to changes in business requirements.