Annual Funding profiles Total rdt&E costs must be spread across the development years Typically loaded toward the earlier years NASa uses a beta curve but other models exist http://www.isc.nasagov/bu2/beta.html Similar models are used for production runs
Annual Funding Profiles • Total RDT&E costs must be spread across the development years – Typically loaded toward the earlier years • NASA uses a Beta curve but other models exist – http://www.jsc.nasa.gov/bu2/beta.html • Similar models are used for production runs
Inflation CERs are based on constant year dollars and must be inflated to determine the total value and year-by-year requirement Inflation factors for each type of money(rdt&E, Production, Operation) are published by osd and Nasa annually Government figures included in aCEIT cost estimation software
Inflation • CERs are based on constant year dollars and must be inflated to determine the total value and year-by-year requirement • Inflation factors for each type of money (RDT&E, Production, Operation) are published by OSD and NASA annually • Government figures included in ACEIT cost estimation software
Cost Analysis Requirements Document Usually required for formal cost reviews Explains the rationale used to derive cost estimates Documentation makes it easier to update the estimate through the duration of the program life Usually contains Project description WBS Ground rules and assumptions Schedule Cost summaries for each WBs element Cost phasing summaries
Cost Analysis Requirements Document • Usually required for formal cost reviews – Explains the rationale used to derive cost estimates • Documentation makes it easier to update the estimate through the duration of the program life • Usually contains – Project description – WBS – Ground rules and assumptions – Schedule – Cost summaries for each WBS element – Cost phasing summaries
CARD Subsystem Summaries Overall technical description(function, components, quantities heritage. TRL, risk Schematic, picture or diagram cer graphs or single point analog Basis of estimate if not parametric (e.g, grassroots, vendor ROM Key assumptions POC
CARD Subsystem Summaries • Overall technical description (function, components, quantities, heritage, TRL, risk) • Schematic, picture or diagram • CER graphs or single point analog • Basis of estimate if not parametric (e.g., grassroots, vendor ROM • Key assumptions • POC
Costing references Space Mission Analysis and Design, Wertz and Larson Reducing Space Mission Cost, Wertz and Larson International Reference Guide to Space Launch Systems, Sakowitz, AIAA Jane's space Directory Cost Models Aerospace Corporation Small Satellite Cost Model (SSCM) Air Force Unmanned Spacecraft Cost Model (USCM) NASA Goddard Multivariable Instrument Cost Model (MICM) NASa World wide web sites tp://www.jscnasagov/bu2/guidelines.html http://www.jscnasagov/bu2/models.html
Costing References • Space Mission Analysis and Design, Wertz and Larson • Reducing Space Mission Cost, Wertz and Larson • International Reference Guide to Space Launch Systems, Isakowitz, AIAA • Jane’s Space Directory • Cost Models – Aerospace Corporation Small Satellite Cost Model (SSCM) – Air Force Unmanned Spacecraft Cost Model (USCM) – NASA Goddard Multivariable Instrument Cost Model (MICM) – NASA World Wide Web sites • http://www.jsc.nasa.gov/bu2/guidelines.html • http://www.jsc.nasa.gov/bu2/models.html