Which of the following is not a Development Environment?

The correct answer is Service Center. Service Center is primarily an application management and monitoring tool rather than a development environment. It provides capabilities for managing applications, users, and resources but does not offer the tools or interfaces needed for developing or designing applications.

In contrast, Service Studio and Integration Studio are both environments specifically designed for creating and integrating applications in the OutSystems platform. Service Studio focuses on the visual development of applications, allowing developers to design user interfaces and workflows, while Integration Studio is geared towards connecting and integrating external systems and data sources.

Development Manager is also considered a part of the broader development lifecycle but is not typically classified as a direct development environment in the same way that Service Studio and Integration Studio are. Its primary role centers around process management rather than the hands-on development tasks that characterize true development environments.