Computer resource estimation Define processing tasks Application software PDR -Operating system functions Estimate software size and throughput Establish a cost for spacecraft software Evaluate development and test requirements Create funding profile for development and test computers and equipment Identify life-cycle support costs On-orbit operations and support CDR -Upgrades, enhancements, modifications, sequence verification Combine resourcelasset estimations to include all costsComputer Resource Estimation • Define processing tasks – Application software PDR - Operating s ystem functions • Estimate software size and throughput • Establish a cost for spacecraft software • Evaluate develop ment and test requirements • Create funding profile for develop ment and test computers and equip ment. • Identify life-cycle support costs – On-orbit operations and support CDR - Upgrades, enhancements, modifications, sequence verification • Combine resource/asset estimations to include all costs