Ektron CMS400.Net Reference
A staged version of content is one that is not published. It can be content that is checked in, or content that is approved with a pending a start date.
Staging lets you make changes to content, while keeping it from the Web site until you are ready to publish it.
See Also: After selecting content, you may have the following options.; Content Statuses; Workflow in Ektron CMS400.NET