Manufacture

Here a project comes under the greatest public scrutiny as the largest financial commitments are made.

Estimate Costs

The comprehensiveness of 'top-down' techniques guards against the chronic tendency of 'bottom-up' methods to underestimate. The unque architecture of FACET models transfers automatically and seamlessly to a design-based approach.

Bottom-up estimates can include only those work elements which ae identified and planned for in advance of work commencing. Hence, they must invariably be underestimates of the total. While invaluable for day-to-day project management and cost control, they are unsuitable thus for high-level decision making which must depend upon comprehensive top-down estimates.