de-offs of implementing a network inventory solution. While the business case presents an enterprise-based focus on costs and benefits, and identifies critical areas for improvement, more detail is needed to drill down to provide a network inventory solution. A network inventory solution should provide an integrated view of the entire network, bringing together inside and outside plant 10 Network Inventory Management for the physical and logical network. This consolidated approach provides: productivity gains in processes that are used to activate customer services reduced time for realization of service revenues better asset utilization through accurate representation of deployed capital assets. An inventory solution will ideally integrate into the OSS enterprise using stan- dard interfaces, providing open access to spatial, physical and logical models. This requires network and communications business knowledge and technical skills in order to deliver network inventory solutions that enable a carrier to: manage the increasing demand for capacity improve time-to-market for new services increase operational efficiencies. An inventory OSS solution should allow the overall solution to be provided faster, by leveraging "best-in-breed" products from companies that have solved similar issues for other service providers. 10.3 Network Inventory Domain Object Models A significant obstacle to an efficient and accurate provisioning process is the pres- ence of disparate representations of inventory across organizational departments and OSS. This disparate representation requires both human resources and applica- tions either to make inventory changes in several places or to work through trans- lation rules to come to a representation of data that can easily be understood. This additional effort can lead to errors in representing the data correctly and will cause orders to fall out. This is called "redlining" in the provisioning process. A Domain Object Model (DOM) provides a common representation of inventory across the en