ested service, the IIC can then move forward. It submits the service order and captures information such as any special account hierarchies, billing locations, customer contact personnel and payment procedures. The IIC must also capture more detailed service information. For example, let's say a medium-sized business customer orders a T-1 circuit for its Internet access. The ISP providing it must obtain information regarding special IP address needs, registered domain names, e-mail addresses and other related information. IICs also often incorporate steps in the order entry process to check a customer's credit, manage deposits and detect and eliminate fraud. If everything is satisfactory, the process can move on to reserve facilities and assign due dates and installation appointments. Reserving facilities generally means communicating with one or more network inventory databases. Scheduling due dates and appointments requires communication with workforce management and/or scheduling applications. 1.6 Order Types Beyond initial orders for service, generally classified as new orders, a number of other order types exist. These include: The Ultimate Guide to Building and Delivering OSS/BSS Table 1. Add Orders The customer adds a new service or feature to an existing set of services. Change Orders The customer alters the configuration or features of an existing service or set of services. Move Orders The customer relocates and requests existing services to be moved "as is" to the new location. Disconnect Orders The customer requests that services be terminated. Supplemental Orders The customer requests modifications to orders that have not yet been filled. The ability for order systems to correlate the supplemental order information with the original order is critical to ensuring accuracy in the fulfillment process. This may sometimes result in a pending order being "backed out" in order to accommodate the new request, or in the merging of the two orders (original and supplemental) within the order management system. 