FSP20 has implemented a transformative process in costing that involves using a consistent methodology and costing tool that provides comprehensive cost assurance. The new parametric methodology for cost estimation and assurance aligns with First Principles Review that Defence needs to have cost estimation that factors in both acquisition and sustainment. This
methodology has the outcome of improved accuracy and completeness for total cost of ownership. In continuing the best practices of FSP20 it has significant strategic importance to Defence and its project portfolio.