Installed automatically, network services include services that the system requires to function, for example, database and platform services. Because these services are required for basic functionality, you cannot activate them in the Service Activation window. If necessary, for example, for troubleshooting purposes, you may need to stop and start (or restart) a network service in the Control Center - Network Services window.
After the installation of your application, network services start automatically, as noted in the Control Center - Network Services window. The serviceability GUI categorizes services into logical groups.