One of the great features of the web system is the ability to share your site with others for the purpose of adding and editing content. The system allows you to share as much or as little of your site as you wish, whether you need to share a page, a folder or the entire site You also have the capability to assign each contributor different types of access, based on the tasks they perform.
Permissions specify exactly what a user can do. Permissions specify exactly what a user can do. They're additive, meaning that "can view", "can add", "can edit", "can review" (i.e. review and publish), and "can manage" are actually individual permissions that when, enabled together, allow a user to function in their given "role" on a site.
When several people contribute to a site, the site manager (or anyone with the 'Can Review' permission) may choose to utilize the review process workflow to maintain control of site content.