Abstract: A procurement system is disclosed to make a category behave like a specific product that can be chosen and requested through the procurement system. A catalog is easily constructed which: includes all categories of products and services that an organization may procure; inserts specific pertinent products and services that the organization may want to maintain under each category; productizes categories that the organization may allow a user to request; and hides the categories and products that the organization may not allow users in certain positions to view. A procurement system with productized categories accommodates both novice and expert users. Broad product and service requests can be forwarded to designated experts for order assistance. Expert requesters and purchases can refine requests to provide detailed and specific product descriptions.