Attributes are sometimes confused with 'options', but
they are quite different. Options are choices that are available to a
customer to select when choosing a product. Attributes on the other
hand are fixed pieces of information that apply to the product and
cannot be selected or deselected by a customer.
To give an example of usage, a book might have a
number of attributes:
ISBN (unique book number that all books
have)
Publisher
Author
Genre (thriller, romance, non-fiction, etc.)
Format (hardback,
paperback, audio book, e-book)
Once created, you can enter the information for each
and every book you feature on your site (although there is no
requirement to enter any attributes for any item where you don't wish
to).
Above: Attributes set to display on a product page