How can Application Composition principles be used to improve the scalability of a large application?

The principle of Application Composition emphasizes the importance of breaking down large applications into smaller, independent components or services. This approach significantly improves scalability. When an application is decomposed into smaller parts, each component can be scaled individually according to its specific workload and performance requirements. This means that if one part of the application experiences high demand, it can be scaled up without needing to scale the entire application, thus optimizing resource use and enhancing performance.

By leveraging Application Composition, teams can also deploy various services in different environments tailored to their requirements, such as using microservices architecture or service-oriented architecture. This not only improves efficiency but also allows teams to adopt technologies best suited for each component, further enhancing the application's overall performance.

In contrast, a monolithic approach restricts scalability because the entire application must be scaled as a whole. Ignoring dependencies between modules could lead to integration issues and complicate maintenance, while limiting the number of users would not address scalability in a meaningful way and would typically only serve as a temporary fix to performance issues.