Single Instance and Multiple Instance Shell Types

Shells are characterized by:

A unique system ID
Single or multiple instance
Generic or CBS cost code

Shell instances are copies of shell types, and have these characteristics:

An instance of a shell type must exist before the shell type is viewable in User mode
Shell type single can be a root node or a tab
Shell type multiple populate levels in a hierarchy Shells and the Cost Managers

Depending on the shell type, the shell is either a single-instance shell or a multiple-instance shell. Single- and multiple-instance shells all appear as tabs, similar to the Home tab.

Single instance: This type of shell is an anchor shell and cannot be replicated. Use this shell at the root of a hierarchy. You cannot make a template of this shell.
Multiple instance: This type of shell can be replicated. Use this shell as a building block for a hierarchy. Multiple-instance shells allow you to create more than one copy of a shell, and they support the use of templates.

Here is an example of how it could work: Your anchor shell is a single-instance shell and might be called Europe. This shell has a tab, and is the root of the hierarchy. Under this shell, you could use multiple-instance shells to create shells that represent countries, such as Holland, France, and Hungary. These building block shells can have templates, so each of these country workspaces can have the same business processes and managers, but they may have different users. The Shell Manager lets you import and manage shells.

To access the hierarchy, in the Location bar, click + (New tab) and select a shell, which appears as a tab. On the Workspaces tab, you can view the list of available sub-shells.

See Also