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Appendix A    Acronyms  
Appendix B    Glossary  
Appendix C    How to Write a Good Requirement— Checklist
Appendix D    Requirements Verification Matrix  
Appendix E    Creating the Validation Plan with a Validation Requirements Matrix
Appendix F    Functional, Timing, and State Analysis
Appendix G    Technology Assessment/Insertion
Appendix H    Integration Plan Outline
Appendix I     Verification and Validation Plan Outline
Appendix J     SEMP Content Outline
Appendix K    Technical Plans
Appendix L     Interface Requirements Document Outline
Appendix M    CM Plan Outline
Appendix N    Guidance on Technical Peer Reviews/Inspections
Appendix O    Reserved
Appendix P    SOW Review Checklist
Appendix Q    Reserved
Appendix R    HSI Plan Content Outline
Appendix S    Concept of Operations Annotated Outline
Appendix T    Systems Engineering in Phase E

References Cited
Bibliography

AADL        Architecture Analysis and Design Language
AD2          Advancement Degree of Difficulty Assessment
AIAA         American Institute of Aeronautics and Astronautics
AO            Announcement of Opportunity
AS9100     Aerospace Quality Management Standard
ASME        American Society of Mechanical Engineers
ASQ          American Society for Quality
CAIB         Columbia Accident Investigation Board
CCB           Configuration Control Board
CDR          Critical Design Review
CE             Concurrent Engineering or Chief Engineer
CEQ          Council on Environmental Quality
CERR        Critical Event Readiness Review
CHSIP       Commercial Human Systems Integration Processes
CI              Configuration Item
CM            Configuration Management
CMO         Configuration Management Organization
ConOps    Concept of Operations
COSPAR    Committee on Space Research
COTS        Commercial Off-The-Shelf
CPI            Critical Program Information
CR            Change Request
CRM          Continuous Risk Management
CSA           Configuration Status Accounting
D&C         Design and Construction
DDT&E     Design, Development, Test, and Evaluation
DM           Data Management
DOD         (U.S.) Department of Defense
DODAF     DOD Architecture Framework
DR            Decommissioning Review
DRM         Design Reference Mission
DRR          Disposal Readiness Review
EDL          Entry, Descent, and Landing
EEE           Electrical, Electronic, and Electromechanical
EFFBD       Enhanced Functional Flow Block Diagram
EIA           Electronic Industries Alliance
EMC          Electromagnetic Compatibility
EMI           Electromagnetic Interference
EO            (U.S.) Executive Order
EOM         End of Mission
EVM          Earned Value Management
FA             Formulation Agreement
FAD          Formulation Authorization Document
FAR          Federal Acquisition Regulation
FCA          Functional Configuration Audit
FFBD        Functional Flow Block Diagram
FIPS          Federal Information Processing Standard
FM            Fault Management
FMEA        Failure Modes and Effects Analysis
FMR          Financial Management Requirements
FRR           Flight Readiness Review
FTE           Full Time Equivalent
GEO          Geostationary
GOTS        Government Off-The-Shelf
GSE          Government-Supplied Equipment or Ground Support Equipment
GSFC        Goddard Space Flight Center
HCD         Human-Centered Design
HF            Human Factors
HITL         Human-In-The-Loop
HQ           Headquarters
HSI           Human Systems Integration
HSIP         Human System Integration Plan
HWIL        HardWare-In-the-Loop
I&T           Integration and Test
ICD          Interface Control Document/Drawing
ICP           Interface Control Plan
IDD          Interface Definition Document
IDEF0       Integration Definition (for functional modeling)
IEEE          Institute of Electrical and Electronics Engineers
ILS            Integrated Logistics Support
INCOSE    International Council on Systems Engineering
IPT           Integrated Product Team
IRD           Interface Requirements Document
ISO           International Organization for Standardization
IT             Information Technology
ITA           Internal Task Agreement
ITAR         International Traffic in Arms Regulation
IV&V         Independent Verification and Validation
IVHM         Integrated Vehicle Health Management
IWG           Interface Working Group
JCL            Joint (cost and schedule) Confidence Level
JPL            Jet Propulsion Laboratory
KBSI          Knowledge Based Systems, Inc.
KDP          Key Decision Point
KDR          Key Driving Requirement
KPP           Key Performance Parameter
KSC           Kennedy Space Center
LCC           Life Cycle Cost
LEO           Low Earth Orbit or Low Earth Orbiting
M&S          Modeling and Simulation or Models and Simulations
MBSE        Model-Based Systems Engineering
MCR          Mission Concept Review
MDAA       Mission Directorate Associate Administrator
MDR         Mission Definition Review
MEL           Master Equipment List
MODAF     (U.K.) Ministry of Defense Architecture Framework
MOE          Measure of Effectiveness
MOP          Measure of Performance
MOTS        Modified Off-The-Shelf
MOU         Memorandum of Understanding
MRB          Material Review Board
MRR          Mission Readiness Review
MSFC        Marshall Space Flight Center
NASA        (U.S.) National Aeronautics and Space Administration
NEN          NASA Engineering Network
NEPA        National Environmental Policy Act
NFS           NASA FAR Supplement
NGO          Needs, Goals, and Objectives
NIAT         NASA Integrated Action Team
NID           NASA Interim Directive
NOA          New Obligation Authority
NOAA       (U.S.) National Oceanic and Atmospheric Administration
NODIS       NASA Online Directives Information System
NPD          NASA Policy Directive
NPR          NASA Procedural Requirements
NRC          (U.S.) Nuclear Regulatory Commission
NSTS         National Space Transportation System
OCE          (NASA) Office of the Chief Engineer
OCIO        (NASA) Office of the Chief Information Officer
OCL          Object Constraint Language
OMB         (U.S.) Office of Management and Budget
ORR          Operational Readiness Review
OTS           Off-the-Shelf
OWL          Web Ontology Language
PBS            Product Breakdown Structure
PCA           Physical Configuration Audit or Program Commitment Agreement
PD/NSC     (U.S.) Presidential Directive/National Security Council
PDR           Preliminary Design Review
PFAR         Post-Flight Assessment Review
PI               Performance Index or Principal Investigator
PIR            Program Implementation Review
PKI            Public Key Infrastructure
PLAR         Post-Launch Assessment Review
PM            Program Manager or Project Manager
PMC          Program Management Council
PPD           (U.S.) Presidential Policy Directive
PRA           Probabilistic Risk Assessment
PRD          Project Requirements Document
PRR           Production Readiness Review
QA            Quality Assurance
QVT          Query View Transformations
R&M          Reliability and Maintainability
R&T          Research and Technology
RACI         Responsible, Accountable, Consulted, Informed
REC           Record of Environmental Consideration
RF             Radio Frequency
RFA           Requests for Action
RFP           Request for Proposal
RID            Review Item Discrepancy or Review Item Disposition
RIDM         Risk-Informed Decision-Making
RM            Risk Management
RMA          Rapid Mission Architecture
RUL           Remaining Useful Life
SAR           System Acceptance Review or Safety Analysis Report (DOE)
SBU           Sensitive But Unclassified
SDR           Program/System Definition Review
SE              Systems Engineering
SECoP       Systems Engineering Community of Practice
SEMP         Systems Engineering Management Plan
SI              International System of Units (French: Système international d’unités)
SIR            System Integration Review
SMA          Safety and Mission Assurance
SME          Subject Matter Expert
SOW         Statement Of Work
SP             Special Publication
SRD          System Requirements Document
SRR          Program/System Requirements Review
SRS           Software Requirements Specification
STI            Scientific and Technical Information
STS           Space Transportation System
SysML       System Modeling Language
T&E           Test and Evaluation
TA             Technical Authority
TBD           To Be Determined
TBR           To Be Resolved
ToR           Terms of Reference
TPM          Technical Performance Measure
TRL           Technology Readiness Level
TRR          Test Readiness Review
TVC          Thrust Vector Controller
UFE           Unallocated Future Expenses
UML          Unified Modeling Language
V&V          Verification and Validation
WBS          Work Breakdown Structure
WYE          Work Year Equivalent
XMI           XML Metadata Interchange
XML          Extensible Markup Language