Permission settings control what users can and cannot do within the portal and are set by portal administrators.
Permission types dictate what a user can do within the portal. Two permission types are available as follows:
Access
This permission type allows users to utilize portal content, that is; sign in, rearrange portlets, etc. This permission can be set for multiple member groups.
Edit
This permission type allows users to change portal content. This includes actions such as changing page information, deleting pages etc. The edit permission is set for only one group at a time.
Permission _ levels_ dictate where in the portal the user's permission type applies. There are three permission levels:
Portal
The portal permission level includes all pages within the portal. Therefore, a user with the access permission type can view (but not edit) all the pages within the portal. A user with edit permission at the portal level, can change any page in the portal.
Page
The page permission level restricts the user to particular pages. Users are only able to see and/or edit (depending on their permission type) pages they have been given access to.
Portlet
The portlet permission level allows users to create a page by dragging and dropping portlets into a page. Some portlets are only used for administrators while some are used for individuals thus administrators have to set the appropriate access permissions.
Permission types and levels can be used to effectively control who can do what within the portal. For more information on setting permissions refer to Manage Permissions