 gets a restricted view of the OMS. This customer view of OMS gives information on the status of the order and ensures that the customer can also track and manage the order. With this functionality, in case the order is not completed on time, the customer can take it up with the support desk and resolve any issues including a change or cancellation of order. There is usually a presales and sales activity before the order, though some services can have a direct order, such as service orders that can be placed online from a Web site. When placing an online order, the customer enters all the relevant details that the service provider can work on to offer the service requested. Once the order is completed and a customer starts using the service, then the order number is used to collect data from the trouble management module, per- formance reporting module, and billing modules, SO that the customer can view any information corresponding to the specific order that the service provider opens up to the customer. A customer can place more than one order and there would be a multiple order status that the customer will track even if the services are offered as a single bundle. While provisioning is the key process dealing with configuring the network to deliver the service desired by the customer, the order management OSS/BSS Functions system provides the relevant information to provisioning module to trigger the provisioning operation. Some of the features of an order management system are: Preorder data collection: This involves collecting the customer details and vali- dating credit (credit check) to ensure that the requested service can be placed. Accepting orders: This activity includes creating the order and making changes (editing) to the order based on a customer request. Integration with inventory database: The order can be successfully completed only when the required inventory to offer the service is available. To satisfy the order, the required resources are reserved or when the resources are not already avail