NOT MEASUREMENT SENSITIVE NASA TECHNICAL HANDBOOK NASA-HDBK-1005 Office of the NASA Chief Engineer Approved: 2021-03-11 NASA SPACE MISSION ARCHITECTURE FRAMEWORK (SMAF) HANDBOOK FOR UNCREWED SPACE MISSIONS APPROVED FOR PUBLIC RELEASE—DISTRIBUTION IS UNLIMITED NASA-HDBK-1005 DOCUMENT HISTORY LOG Status Document Change Approval Date Description Revision Number Baseline 2021-03-11 Initial Release APPROVED FOR PUBLIC RELEASE—DISTRIBUTION IS UNLIMITED 2 of 114 NASA-HDBK-1005 FOREWORD This NASA Technical Handbook is published by the National Aeronautics and Space Administration (NASA) as a guidance document to provide engineering information; lessons learned; possible options to address technical issues; classification of similar items, materials, or processes; interpretative direction and techniques; and any other type of guidance information that may help the Government or its contractors in the design, construction, selection, management, support, or operation of systems, products, processes, or services. This NASA Technical Handbook is approved for use by NASA Headquarters and NASA Centers and Facilities. It may also apply to the Jet Propulsion Laboratory (a Federally Funded Research and Development Center [FFRDC]), other contractors, recipients of grants and cooperative agreements, and parties to other agreements only to the extent specified or referenced in applicable contracts, grants, or agreements. This NASA Technical Handbook establishes an Uncrewed Mission Architecture Framework intended to increase the value of the scientific investigations; improve effectiveness of end-to- end mission development, including leveraging digital engineering techniques; enhance institutional capability management; and improve collaborative application of digital models and products across NASA's science portfolio. Requests for information should be submitted via “Feedback” at https://standards.nasa.gov. Requests for changes to this NASA Technical Handbook should be submitted via MSFC Form 4657, Change Request for a NASA Engineering Standard. Original Signed By Adam West for 3/11/2021 _______________________________ _____________________ Ralph R. Roe, Jr. Approval Date NASA Chief Engineer APPROVED FOR PUBLIC RELEASE—DISTRIBUTION IS UNLIMITED 3 of 114 NASA-HDBK-1005 TABLE OF CONTENTS SECTION PAGE DOCUMENT HISTORY LOG .......................................................................................... 2 FOREWORD ....................................................................................................................... 3 TABLE OF CONTENTS .................................................................................................... 4 LIST OF APPENDICES ..................................................................................................... 5 LIST OF FIGURES ............................................................................................................. 6 LIST OF TABLES ............................................................................................................... 6 1. SCOPE .................................................................................................................. 7 1.1 Purpose ................................................................................................................... 7 1.2 Applicability ........................................................................................................... 7 2. APPLICABLE DOCUMENTS ........................................................................... 8 2.1 General ................................................................................................................... 8 2.2 Government Documents ........................................................................................ 8 2.3 Non-Government Documents ................................................................................ 8 2.4 Order of Precedence ............................................................................................... 8 3. ACRONYMS, ABBREVIATIONS, SYMBOLS, AND DEFINITIONS ......... 8 4. DIGITAL ENGINEERING ENVIRONMENT ENABLING AN ARCHITECTURE FRAMEWORK FOR UNCREWED SPACE MISSIONS ............................................................................................................ 9 4.1 General Principles of Architecture Framework Application ................................. 9 4.2 Applying an Architecture Framework in a Project ................................................ 10 4.3 The Role of Mission Architecture in a Project Life Cycle .................................... 12 4.4 Overview of the Space Mission Architecture Framework (SMAF) ...................... 14 4.4.1 Science Viewpoint ................................................................................................. 17 4.4.2 Engineering Viewpoint .......................................................................................... 17 4.4.3 Project Implementation Viewpoint ........................................................................ 20 4.4.4 Mission Operations Viewpoint .............................................................................. 21 4.4.5 Enterprise/Mission Concept Viewpoint ................................................................. 22 APPROVED FOR PUBLIC RELEASE—DISTRIBUTION IS UNLIMITED 4 of 114 NASA-HDBK-1005 TABLE OF CONTENTS (Continued) LIST OF APPENDICES APPENDIX PAGE A Introduction and Rationale for the Architecture Framework for Uncrewed Space Missions.................................................................................................. 2 5 B Guidance for Creating SMAF Products ............................................................ 47 C Key Documents Associated with the Space Mission Architecture Framework (SMAF) ............................................................................................................. 91 D Models Used with Space Mission Architecture Framework (SMAF) Products............................................................................................................. 94 E Space Mission Architecture Framework (SMAF) Viewpoints Mapped to 95 Project Review Criteria .................................................................................... F References ......................................................................................................... 10 6 G Acronyms, Abbreviations, Symbols, and Definitions ...................................... 1 09 APPROVED FOR PUBLIC RELEASE—DISTRIBUTION IS UNLIMITED 5 of 114 NASA-HDBK-1005 TABLE OF CONTENTS (Continued) LIST OF FIGURES FIGURE PAGE 1 Content Areas ..................................................................................................... 12 2 SMAF Content in the Context of a Project ......................................................... 13 3 Context Diagram of the Science View, Including View Products ...................... 17 4 Context Diagram of the Technical Solution View, Including Products .............. 19 5 Context Diagram for the Product Realization View, Including Products ............ 20 6 Context Diagram of the Project Implementation View, Including Products ....... 21 7 Context Diagram for the Mission Operations View, Including Products ............ 22 8 Context Diagram for the Enterprise View, Including Products ........................... 23 9 Overall Crosscutting Categories of Stakeholder Concerns .................................. 28 10 Flowdown and Traceability of Needs, Goals, and Objectives ............................. 36 11 SMAF Scope Diagram ......................................................................................... 37 12 Summary of SMAF View Content ...................................................................... 38 13 Summary of Mission Architecture Framework Content Exchanged by Viewpoints ........................................................................................................... 40 14 Mission System Decomposition .......................................................................... 45 15 Context Diagram for the Science View ............................................................... 50 16 Context Diagram for the Technical Solution View ............................................. 56 17 Context Diagram for the Product Realization View ............................................ 70 18 Context Diagram for the Project Implementation View ...................................... 76 19 Context Diagram for the Mission Operations View ............................................ 81 20 Context Diagram for the Enterprise View ........................................................... 86 LIST OF TABLES TABLE PAGE 1 SMAF Stakeholders, Participants, Viewpoints, Views, and View Products ...... 15 2 Participant Responsibilities for SMAF View ...................................................... 42 3 SMAF Taxonomies for Systems, Requirements, and Organizations .................. 42 4 MCR Criteria ....................................................................................................... 96 5 SRR Criteria ......................................................................................................... 98 6 MDR/SDR Criteria .............................................................................................. 100 7 PDR Criteria ........................................................................................................ 102 8 CDR Criteria .......................................................................................................