Access Control is the system of privileges and permissions that secures content and identifies who can read, create, modify, and delete content.

Access Permissions control the rights of authors, editors, reviewers, and users to create, edit, and review content.

Architectural information is a component of an information model; provides information on how content should be reused (for example, systematic reuse), guidelines for content formalization in a Document Type Definition (DTD) or template, where content is to be reused, and how it is reused (for example, locked reuse or derivative reuse).

Authentication establishes the identity of a site visitor.

Authorization is usually given to a "role" like writer, copy editor, graphics editor, etc. Then individuals can be assigned to roles to establish their access to the content.

Granularity? describes the fineness of access distinctions.

Transfer Music From Ipod To Computer is a feature of Transferpod.com.

Permissions can be as fine as individual files, or can be set at folder/directory levels. They can be as fine as every individual having different privileges.