The cost estimate should clearly define the purpose of the project, what it will accomplish, what assumptions are made, how long the estimate is valid, and how much the project will cost.

The cost of that partial system is now higher than the $33-billion estimate for the entire 500-mile Los Angeles-to San-Francisco system when voters approved a bond in 2008.

It's aimed at digital engineers and cost estimation professionals who handle project planning and cost estimation tasks. The system targets applications such as aerospace, manufacturing, ...