Goods or services with similar characteristics that are grouped together for planning and management purposes. For instance, furniture could be a spend category for a business, and have sub categories consisting of the desks, chairs, tables and cabinets purchased by the company during the year. Some organizations classify spend using their own unique categories, others rely on more standard taxonomies like the United Nations Standard Products and Services Code® (UNSPSC®) or the North American Industry Classification System (NAICS).