Charles NolaLisa Blue

June 21, 2006

Charles NolaLisa Blue

June 21, 2006

Crew Launch Vehicle (CLV)Upper Stage

Avionics & SoftwareAcquisition Planning

Crew Launch Vehicle (CLV)Upper Stage

Avionics & SoftwareAcquisition Planning

Baseline Approach - NASA leads Avionics System requirements, specification, architecture, and component specification development. NASA performs risk reduction for critical design areas. NASA maintains design lead role. Avionics Prime Contractor procures, integrates, and tests the Integrated Upper Stage Avionics System and transitions into production/flight phase.

NASA Team in-house development of Element Requirements Document (ERD), interface requirements documents, Avionics and Software System Specification, and Architecture, Component and Software Specifications, Upper Stage Avionics Design Definition Document

NASA performs risk reduction responsibilities for critical Avionics design decisions Avionics Prime Contractor is brought on, through competition, four months prior to US PDR, which provides an

opportunity for collaboration on the component and software specifications. NASA leads the PDR. The NASA Team maintains the overall responsibility for design while the Avionics Prime Contractor provides an

integrated solution for procuring (or building), accepting, electrically integrating, and testing the Upper Stage Avionics System. Post DDT&E, the Avionics Prime Contractor transitions into production/flight phase.

NASA maintains lead for Flight Software Development and a planned transitions to the Avionics Prime Contractor prior to the first CLV Test Flight. NASA will augment their software workforce.

The Avionics Prime Contractor procures, electrically integrates, and tests Upper Stage Avionics System for MPTA and Upper Stage System Level Test (such as Green-runs) and all Flights within the period of performance of the contract. NASA transitions into traditional insight role. The Avionics Prime Contractor supports mechanical integration at MPTA.

Upper Stage Prime delivers Instrument Unit Structure and the Avionics Prime Contractor performs mechanical integration of Avionics at MAF.

The Avionics Prime Contractor procures, electrically integrates, and tests Upper Stage EGSE for Systems Integration Laboratory (SIL), MAF, any required for Launch Processing

Options: Development Flight Instrumentation remains in-house NASA DDT&E

Baseline Approach - Upper Stage Office is delegated responsibility from Vehicle Integration Office for CLV Stack (Element to Element) Electrical Integration and Verification

NASA team with augmented workforce develops verification plans, procedures, and performs electrical integration and verification

Upper Stage Avionics & Software System Acquisition Strategy

Software

Software

CEV SIMULATION

GO

E S

IMU

LA

TIO

N

Upper Stage Engine Avionics Components

First Stage Avionics Components

Acc

epta

nce

Tes

tA

ccep

tanc

e T

est

Acc

epta

nce

Tes

tUpper StageAvionics HWIL

EngineAvionics HWIL

First StageAvionics HWIL

DDT&E (Government Insight)Systems Integration Laboratory (SIL)

Software

Software

SDF (Flight Software) SITF

Production/Flight (Gov Project Office)

Vehicle Checkout

Fir

st S

tage

EG

SE

Eng

ine

EG

SE

Upp

er

Sta

ge

EG

SE Instrument

Unit

GO

E (

EG

SE

)

Stage Checkout

ComponentEnd Item

Specification Acquisition

Acceptance

Shelf

QualificationTest

CertificationTest

ComponentEnd Item

Specification Acquisition

Acceptance

SDF (Flight Software) SITF

DDT&E and Production Roadmap

Component Certificate of Qualification

Avionics Prime ContractorGovernment Team

Software

Software

CEV SIMULATION

GO

E S

IMU

LA

TIO

N

(Flight Software)

System IntegrationLaboratory (SIL)

US

EG

SE

FS

EG

SE

Multi-Line Test Operations

Upper Stage Avionics Components

CARDExploration SRD

Human Rating Plan

DesignReferenceMissions

ConstellationConOps

ConstellationT&V Plan

Avionics and Software

Trade Studies

NASA NPR Requirements & NASA Standards

Constellation Working Groups

(e.g., C3I)

CLVConOps

NEDD &DSNE

CLV Avionics System Requirements Flow

System Requirements Documentfor CLV (LIII)

Upper Stage Element Requirements Document(Sec. 3.7) Avionics & Software Requirements (LIV)

First Stage ERD (Sec. 3.7) Avionics& SW Requirements (LIV)

Flight Software RequirementSpecifications (LIV)

Component Specs (LIV)(Emulator, FEU, FU, EGSE)

LMS Requirements (LIII)

CEV Requirements (LIII)

U/S Main Engine ERD (Sec. 3.7)Avionics & SW Requirements (LIV)

IRDs/ICDs IRDs/ICDs

IRDs/ICDs IRDs/ICDs

Component Software/FirmwareRequirements*

…..

Level 2

Level 3

Level 4

…..

Avionics System Specs (LIV)

Avionics System Specs (LIV?)

Upper StageDesign Definition Document

CLV Avionics ArchitectureDefinition Document

NASA In-houseTeam Products

This document is required at RFP release (NASA responsibility)

Upper Stage Integrated Roadmap

CY06 CY10 CY11CY08 CY09CY07 CY12

US PDR US CDRUS SRR

Mfg Process Development

Structural Development Test Articles

Flight Avionics Hardware Design

Fab Avionics Qualification Units

Flight Unit

Flight Avionics Design Verification

USDAC-1

USDAC-2

USDAC-3

USDAC-4

USDAC-5

SIL Testing – MPTA, Upper Stage Avionics System Integration

Avionics & Software Development

US SDR

Ground Tests

Flight Tests

US DCR

RCS Advanced Development

TVC Advanced Development

MPS Advanced Development

Flight Unit

Battleship Stage

Pathfinder

Vibration Structural Test Article

Upper Stage Avionics Flight Units

AwardRFP

Release

SolicitationEval Avionics System DDT&E, Production, and Operations Support

Avionics Production Contract

Avionics Prime Contract

Producibility Support

Avionics Component Acquisition, Acceptance,

Integration and Checkout

Avionics Component and EGSE Sustaining Engineering

Flight Software Sustaining Engineering

SWRR PDR ICDR CDR

Av Component Dev Testing

AwardRFP

Release