**2. Background of enterprise CBIS**

The utilization of the digital economy in the late '90s caused the disappearance of intermediaries between customers and vendors. A vendor could sell company goods and services directly to a customer without the need for a middle man [6, 7]. Beside the advance in the growth of the digital economy technologies, novel types of enterprise CBISs were established which contributed new value-added services, attracting many new customers and vendors with extra services that facilitate the required business transactions [4, 8, 9]. The development of enterprise CBISs has changed the way traditional business is performed, resulting in new business models, which were developed in the late 1990s. The enterprise CBIS is the result of employing innovative technology in business processes. Overall, the deployment of enterprise CBISs is associated with the eBusiness process of reengineering, linking IT/IS technologies with traditional businesses [10, 11]. It requires a change of management principles and practical alignment between IT/IS technologies and business processes, all of which should be considered for the successful implementation of enterprise CBISs.

While there are many advantages and opportunities for enterprise CBISs [4, 12], cases of the ineffective employment of enterprise CBISs, from both the customers' and vendors' side are reported [6]. If the services of an enterprise CBIS contractor do not add any value to the customer/vendor, in the long term, they will decide that the enterprise CBIS is not the best way for them to conduct business. Lacking an adequate critical mass of customers will lead to the eventual shutdown of that particular enterprise CBIS. Similarly, an insufficient number of buyers in the enterprise CBIS will reduce the incentive for vendors to join the enterprise CBIS, as there will not be enough customers to whom they could advertise their goods or services.

The contemporary literature on enterprise CBISs describes many different eBusiness models of enterprise CBISs [12]. Today's enterprise CBIS practices support many different processes between a customer and a vendor. A number of enterprise CBISs support only the aggregation of supply and demand, and the searching and matching of customers or vendors [13]. In addition, different enterprise CBISs support different types of auctions and negotiations. On the other hand, not many enterprise CBISs support the entire trade process such as contracting, logistics, insurance, finances, legal and payments [6].
