The third SCIS level, decision analysis, focuses on software tools to assist managers in identifying, evaluating, and comparing strategic and tactical alternatives to improve effectiveness. Typical analyses include supplychain design, inventory management, resource allocation, transportation routing, and segmentation profitability. Decision analysis SCIS should ideally include database maintenance, modeling,analysis, and reporting. Like management control, decision analysis may include operational considerations such as vehicle routing and warehouse planning. Decision analysis is al so being used to manage customer relationships by determining the trade-offs associated with having satisfied and successful customers