Using Namespaces to Test Data
The component and system landscape description contain current information about your system landscape. Using SLD simulations, you can also plan a future system landscape. We recommend that you test simulations in a different area to the current system landscape.
The namespace concept of the SLD allows you to create various namespaces as logical areas. The sld/active namespace mirrors the real system landscape. When you create a new namespace, it is initially empty. To create a duplicate of a namespace for test purposes, back up the content of the source namespace and import it to the target namespace.
Choose Administration ® Namespaces.
...
1. Choose Add.
A dialog box appears.
2. In the New Namespace field, enter a name of the new namespace and choose OK.
...
1. In the Database Namespaces field, select the namespace to which you want to switch.
The system switches to the namespace you have selected.

You can switch between namespaces on all other screens on which a namespace switch is relevant. The current namespace is displayed at the bottom of each screen.
...
1. To switch between namespaces on another screen, choose the name of the current namespace.
The Change Namespace screen appears.
2. In the Database Namespaces field, select the namespace to which you want to switch.
3. Choose Set As Current.
The system switches to the namespace you have selected and the previous screen appears.

The namespace is a parameter of your HTTP session. Therefore, the namespace is automatically reset to sld/active after the HTTP session has been inactive for some time.
...
1. In the Database Namespaces field, select the namespace you want to delete.
The system switches to the namespace you have selected.
2. Choose Remove <namespace>.
The system deletes the namespace, including all its data.

The system deletes permanently all instances of the namespace you selected. Make a backup copy of the instances using the backup function, before you delete any instances permanently.
...
1. In the Database Namespaces field, select the namespace whose instances you want to delete.
The system switches to the namespace you have selected.
2. Choose Remove Instances.
