System Product Line Cost and Investment Modeling Applied to UUVs

Abstract

Integrated cost and product modeling applied to the acquisition of unmanned underwater vehicles (UUVs) demonstrated the economic benefits of a product line strategy. The modeling framework includes system modeling language (SysML) for product modeling and a constructive cost model set. The constructive product line investment model (COPLIMO) framework was used for return on investment (ROI) analysis with the constructive systems engineering cost model (COSYSMO) for single system investment and reuse costs. Cost model inputs were extracted directly from the SysML requirements and executable activity models for the UUVs. Model integration reduces effort since only product modeling is performed without the need for independent cost modeling expertise. The case study research investigated the reduction of acquisition costs applying the integrated product line acquisition model for UUV missions with overlapping requirements. The key research question focused on the ROI of a product line approach for UUV systems developing a baseline architecture for reuse. Supporting questions addressed the reuse savings for individual UUV systems, the size and complexity of the resulting system, and their estimated effort. Results indicate a strong ROI when using a product line approach for UUV systems.