Overview Of Portal Registry And Content References

 Portal Registry

Each portal is defined by a portal registry.
A portal registry has a tree-like structure in which content references are organized, classified, and registered. 
A portal registry contains folders and content references.
In the portal registry, folders organize content references into a multilevel hierarchy
Every portal registry contains a root folder and a Portal Objects folder.
There are several ways to access and maintain the portal registry:

• Use the registration wizard to register content references, assign security, and update.
• Use the Menu Import feature to upgrade custom menu group definitions.
• Use portal administration pages to add, change, or delete folders and content references from a portal registry.
• Use the portal registry API for programmatic access to the registry.
• Use the security synchronization process to update the portal registry security based on the menu and script security.

Content references
Content references are definitions that have been entered or registered in the portal registry.
Content references fall into four categories:

1. homepage tabs
2. target content
3. templates
4. pagelets

Access to content references is controlled by permission lists assigned when the content reference is created.