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Development programs and model philosophy 1
Development programs and model philosophyDevelopment programs and model philosophy
Preliminary design review
Prototype program
Critical design review
Qualification program
Qualification review
Flight program
Flight acceptance review
Preliminary design program
Development programs and model philosophy 2
Preliminary designPreliminary design( system design, architectural design)( system design, architectural design)
Established at PDR:Established at PDR:• Design choices, trade-offsDesign choices, trade-offs• Internal and external interfaces frozenInternal and external interfaces frozen• Internal and external environmentInternal and external environment• Functions and performancesFunctions and performances• Design & performance verification programDesign & performance verification program• Feasibility of critical itemsFeasibility of critical items• EGSE and test-equipment planningEGSE and test-equipment planning
Start prototype programStart prototype program
PDR
Development programs and model philosophy 3
Critical design reviewCritical design review
Revisit PDR more accuratelyRevisit PDR more accurately
Documentation:Documentation:• Specification, ICD, drawingsSpecification, ICD, drawings• User manualsUser manuals• Plans: AIV, test equipment, qualification, verification control etcPlans: AIV, test equipment, qualification, verification control etc
FM-design readyFM-design ready
Start qualification programStart qualification program
CDR
Development programs and model philosophy 4
Qualification reviewQualification review
Established at QR:Established at QR:• Functions and performances verifiedFunctions and performances verified• Manufacturing / workmanship verified for launch and space Manufacturing / workmanship verified for launch and space
environmentenvironment
QR
Development programs and model philosophy 5
Acceptance reviewAcceptance review
Established at Flight acceptance review:Established at Flight acceptance review:• Functions and performances verifiedFunctions and performances verified• Manufacturing / workmanship verified for acceptanceManufacturing / workmanship verified for acceptance• Instrument characterization and calibrationInstrument characterization and calibration
AR
Development programs and model philosophy 6
Development programs and highlightsDevelopment programs and highlights
PDR
CDR
QR
AR
prototype
qualification
flight
Specifications frozenInterfaces frozenEnvironment knownTrade-offs made
ICDs, specs, User manualsVerification control matrixPlans
Functions, performance verifiedworkmanship tested at Qualification-level
Functions, performance verifiedworkmanship tested at acceptance levelInstrument calibrated, characterized
Development programs and model philosophy 7
Concurrent programs for all unitsConcurrent programs for all units
prototype
qualification
flight
Unit #3
Unit #2
Unit #1
Development programs and model philosophy 8
Shortcut to proto-flight modelShortcut to proto-flight model
CDR
AR
protoflight
Specifications frozenInterfaces frozenEnvironment knownTrade-offs made
ICDs, specs, User manualsVerification control matrixPlans
Functions, performance verifiedworkmanship tested at Qualification-level
Functions, performance verifiedworkmanship tested at acceptance levelInstrument calibrated, characterized
Development programs and model philosophy 9
EM QM FM STM remark
1.1.11.1.1 Detector subsystem hardware Detector subsystem hardware
1.1.1.11.1.1.1 IDC IDC
1.1.1.21.1.1.2 cryostat cryostat
1.1.1.2.11.1.1.2.1 FEA FEA
1.1.1.2.21.1.1.2.2 ADR ADR
1.1.1.2.31.1.1.2.3 ST ST
1.1.1.2.41.1.1.2.4 ST/JT ST/JT
1.1.1.31.1.1.3 AAC AAC
1.1.1.41.1.1.4 CDE CDE
1.1.1.51.1.1.5 PSU PSU
1.1.1.61.1.1.6 radiator radiator
1.1.1.71.1.1.7 calorimeter array calorimeter array
1.1.1.81.1.1.8 in-flight calibration source in-flight calibration source
1.1.1.91.1.1.9 CAP CAP
1.1.1.101.1.1.10 CDP CDP
1.1.1.111.1.1.11 flight harness flight harness
1.1.21.1.2 Detector subsystem software Detector subsystem software
1.1.2.11.1.2.1 IDC-software IDC-software
1.1.2.21.1.2.2 CDP-software CDP-software
1.1.2.31.1.2.3 cmd/hk database cmd/hk database
Development programs and model philosophy 10
EM QM FM STM remark
1.2.11.2.1 Telescope subsystem hardware Telescope subsystem hardware
1.2.1.11.2.1.1 TubeTube
1.2.1.21.2.1.2 Mirror moduleMirror module
1.2.1.31.2.1.3 CoverCover
1.2.1.41.2.1.4 tactac
1.2.1.51.2.1.5 HeatersHeaters
1.2.1.61.2.1.6 thermistorsthermistors
1.2.1.71.2.1.7 flight harnessflight harness
1.2.21.2.2 telescope subsystem software telescope subsystem software
1.2.2.11.2.2.1 cmd/hk database cmd/hk database
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