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