E-procurement is a form of e-commerce specifically intended to assist the procurement process. De Boer, Harink and Heijboer [5] stated that e-procurement aims to automate and simplify the procurement process in the organization and increase efficiency and transparency as to reduce operating costs. E-procurement can also change and improve areas such as internal and external communications, business transactions, as well as supply chain management and alliances [3]. These systems typically include a web catalog, ordering, payment and order tracking subsystem [6].