What architecture consists of all features and services as part of one large application?

Monolithic Architecture is characterized by an application that is built as a single unit, where all features and services are interconnected and run as a single process. This architecture approach means that the entire application is managed and deployed together, which can simplify development and deployment in the early stages of a project. In a monolithic setup, developers often find it easier to share code, utilize a unified codebase, and streamline testing processes, since everything resides in one application.

This can also lead to challenges, such as difficulty in scaling individual components, as the entire application must be replicated for scaling rather than just independent services. However, for smaller projects or teams, this can streamline workflows and reduce complexity compared to architectures that require multiple services to communicate with one another. Monolithic architecture serves as a foundational approach, especially for applications where quick iterations are necessary without the overhead of managing multiple components separately.