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- 15:29, 17 May 2019 diff hist +293 Introduction to Systems Engineering Fundamentals →Engineered Systems and Systems Engineering
- 15:24, 17 May 2019 diff hist -13 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 15:23, 17 May 2019 diff hist +311 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 15:17, 17 May 2019 diff hist -1 Introduction to Systems Engineering Fundamentals →A General View of Systems
- 15:09, 17 May 2019 diff hist -5 Introduction to Systems Engineering Fundamentals →Overview Tag: visualeditor
- 15:06, 17 May 2019 diff hist +1,829 Introduction to Systems Engineering Fundamentals
- 14:31, 17 May 2019 diff hist +8 Systems Engineering Fundamentals →Topics
- 12:03, 17 May 2019 diff hist -32 Systems Approach Applied to Engineered Systems →Topics
- 11:54, 17 May 2019 diff hist +18 Systems Engineering Fundamentals →Topics
- 11:42, 17 May 2019 diff hist 0 Foundations of Systems Engineering →Knowledge Areas in Part 2
- 17:14, 23 April 2019 diff hist +446 Types of Systems →Services and Service Systems
- 17:06, 23 April 2019 diff hist +277 Types of Systems →Products and Product Systems
- 16:40, 23 April 2019 diff hist +80 Types of Systems
- 16:13, 23 April 2019 diff hist +7 Types of Systems →Services and Service Systems
- 16:10, 23 April 2019 diff hist +33 Types of Systems →Products and Product Systems
- 15:55, 23 April 2019 diff hist +471 Types of Systems →Services and Service Systems
- 15:47, 23 April 2019 diff hist +27 Types of Systems →Products and Product Systems
- 15:44, 23 April 2019 diff hist +725 Types of Systems →Services and Service Systems
- 15:35, 23 April 2019 diff hist +215 Types of Systems →Products and Product Systems
- 15:31, 23 April 2019 diff hist +154 Types of Systems →Products and Product Systems
- 15:27, 23 April 2019 diff hist +429 Types of Systems →Products and Product Systems
- 15:21, 23 April 2019 diff hist +278 Types of Systems →Services and Service Systems
- 15:14, 23 April 2019 diff hist +88 Types of Systems →Products and Product Systems
- 15:01, 23 April 2019 diff hist +82 Introduction to Systems Engineering Fundamentals →Life Cycle and Engineered System Context
- 14:57, 23 April 2019 diff hist -1 Introduction to Systems Engineering Fundamentals →Life Cycle and Engineered System Context
- 14:56, 23 April 2019 diff hist +14 Introduction to Systems Engineering Fundamentals →Life Cycle and Engineered System Context
- 14:55, 23 April 2019 diff hist +5,402 Introduction to Systems Engineering Fundamentals →Engineered Systems and Systems Engineering
- 14:38, 23 April 2019 diff hist 0 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 14:37, 23 April 2019 diff hist 0 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 14:33, 23 April 2019 diff hist +22 Introduction to Systems Engineering Fundamentals →Systems and System Elements Tag: visualeditor
- 14:32, 23 April 2019 diff hist -48 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 14:20, 23 April 2019 diff hist -621 Introduction to Systems Engineering Fundamentals →Engineered Systems and Systems Engineering
- 13:58, 23 April 2019 diff hist +1,383 Introduction to Systems Engineering Fundamentals →Engineered Systems and Systems Engineering
- 13:56, 23 April 2019 diff hist -815 Introduction to Systems Engineering Fundamentals →System-of-Interest and Systems Context
- 13:54, 23 April 2019 diff hist +255 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 13:40, 23 April 2019 diff hist +187 Introduction to Systems Engineering Fundamentals →A General View of Systems
- 13:38, 23 April 2019 diff hist -16 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 13:24, 23 April 2019 diff hist +19 Introduction to Systems Engineering Fundamentals
- 12:39, 23 April 2019 diff hist 0 Foundations of Systems Engineering →Scope of Part 2
- 12:37, 23 April 2019 diff hist +2,111 Foundations of Systems Engineering
- 15:04, 15 April 2019 diff hist +2 Introduction to Systems Engineering Fundamentals →A Basic View of Systems
- 15:04, 15 April 2019 diff hist 0 Introduction to Systems Engineering Fundamentals Undo revision 55106 by Radcock (talk) Tag: Undo
- 14:59, 15 April 2019 diff hist 0 Introduction to Systems Engineering Fundamentals →A Basic View of Systems Tag: visualeditor
- 14:48, 15 April 2019 diff hist +14,531 Applying the Systems Approach
- 17:54, 30 November 2017 diff hist +423 Editor's Corner
- 17:42, 30 November 2017 diff hist -5 Acknowledgements and Release History →Content and Feature Updates for 1.9
- 17:36, 30 November 2017 diff hist -4 Governance and Editorial Boards →Editorial Board
- 17:34, 30 November 2017 diff hist -25 Guidance for Systems Engineers →How Systems Engineers Use Implementation Examples
- 17:32, 30 November 2017 diff hist -1 Guidance for Systems Engineering Customers →Use of Topics
- 17:32, 30 November 2017 diff hist -48 Guidance for Systems Engineering Customers →Implementation Examples
- 17:29, 30 November 2017 diff hist -9 The Influence of Project Structure and Governance on Systems Engineering and Project Management Relationships →Change Control Board
- 17:25, 30 November 2017 diff hist -2 Guidance for Educators and Researchers →Implementation Examples
- 17:22, 30 November 2017 diff hist -9 Determining Needed Systems Engineering Capabilities in Businesses and Enterprises →Scale of Systems
- 17:19, 30 November 2017 diff hist -22 Systems Engineering Organizational Strategy →Governance
- 17:17, 30 November 2017 diff hist -20 Economic Value of Systems Engineering →The Increasing Value of Systems Engineering
- 17:13, 30 November 2017 diff hist -9 Implementation Examples →SEBoK Examples
- 17:12, 30 November 2017 diff hist +46 Standard Korean Light Transit System
- 17:10, 30 November 2017 diff hist +310 Federal Aviation Administration (FAA) Advanced Automation System (AAS)
- 17:04, 30 November 2017 diff hist -1 Singapore Water Management →Description
- 17:03, 30 November 2017 diff hist +46 Singapore Water Management
- 17:00, 30 November 2017 diff hist +192 UK West Coast Route Modernisation Project
- 16:56, 30 November 2017 diff hist +172 UK West Coast Route Modernisation Project
- 16:51, 30 November 2017 diff hist +310 Virginia Class Submarine
- 16:46, 30 November 2017 diff hist +16 Denver Airport Baggage Handling System
- 16:42, 30 November 2017 diff hist +23 Denver Airport Baggage Handling System
- 16:37, 30 November 2017 diff hist +27 Matrix of Implementation Examples →Organization and Mapping of Examples to the SEBoK
- 16:34, 30 November 2017 diff hist -11 Matrix of Implementation Examples →Organization and Mapping of Examples to the SEBoK
- 16:32, 30 November 2017 diff hist -10 Matrix of Implementation Examples
- 16:30, 30 November 2017 diff hist +445 Systems Engineering Implementation Examples
- 16:27, 30 November 2017 diff hist +6 System Resilience
- 13:31, 30 November 2017 diff hist +18 System Resilience →System Description
- 13:30, 30 November 2017 diff hist 0 System Resilience
- 13:29, 30 November 2017 diff hist +598 System Resilience
- 14:44, 28 November 2017 diff hist -209 System Resilience →System Description
- 14:38, 28 November 2017 diff hist -6 System Resilience
- 14:36, 28 November 2017 diff hist -14 System Resilience
- 14:35, 28 November 2017 diff hist +19 System Resilience
- 14:34, 28 November 2017 diff hist 0 System Resilience
- 14:33, 28 November 2017 diff hist -1 System Resilience
- 14:33, 28 November 2017 diff hist +30 System Resilience
- 14:32, 28 November 2017 diff hist +32 System Resilience
- 12:28, 28 November 2017 diff hist +10 System Resilience
- 12:25, 28 November 2017 diff hist +1 Development of SEBoK v. 1.9 →SEBoK v. 1.8 Authors
- 12:22, 28 November 2017 diff hist -748 Acknowledgements and Release History
- 12:20, 28 November 2017 diff hist -100 Acknowledgements and Release History →SEBoK Releases
- 12:19, 28 November 2017 diff hist +515 Acknowledgements and Release History →Wiki Team
- 12:18, 28 November 2017 diff hist -516 Acknowledgements and Release History →SEBoK Releases
- 12:16, 28 November 2017 diff hist +65 Development of SEBoK v. 1.0
- 12:12, 28 November 2017 diff hist -179 Acknowledgements and Release History →SEBoK Releases
- 12:06, 28 November 2017 diff hist 0 Acknowledgements and Release History →Content and Feature Updates for 1.8
- 12:03, 28 November 2017 diff hist +9 Guide to the Systems Engineering Body of Knowledge (SEBoK) →Welcome to SEBoK v. 1.9
- 12:01, 28 November 2017 diff hist -23 Guide to the Systems Engineering Body of Knowledge (SEBoK) →Welcome to SEBoK v. 1.9
- 12:00, 28 November 2017 diff hist +1 Guide to the Systems Engineering Body of Knowledge (SEBoK)
- 12:00, 28 November 2017 diff hist +90 Guide to the Systems Engineering Body of Knowledge (SEBoK)
- 11:56, 28 November 2017 diff hist +263 Guide to the Systems Engineering Body of Knowledge (SEBoK)
- 11:45, 28 November 2017 diff hist +23 Guide to the Systems Engineering Body of Knowledge (SEBoK)
- 11:42, 28 November 2017 diff hist -6 Guide to the Systems Engineering Body of Knowledge (SEBoK) →Welcome to SEBoK v. 1.9
- 11:40, 28 November 2017 diff hist -5 Guide to the Systems Engineering Body of Knowledge (SEBoK) →Welcome to SEBoK v. 1.9
- 13:25, 23 March 2017 diff hist +46 Editor's Corner →SEBoK v. 1.8
- 12:47, 23 March 2017 diff hist -1 Editor's Corner →SEBoK v. 1.7
- 12:46, 23 March 2017 diff hist -819 Editor's Corner
- 10:37, 23 March 2017 diff hist +44 Systems Engineering and Environmental Engineering →Interactions
- 10:37, 23 March 2017 diff hist +44 Systems Engineering and Environmental Engineering →Tools
- 10:36, 23 March 2017 diff hist +44 Systems Engineering and Environmental Engineering →Models
- 10:36, 23 March 2017 diff hist +44 Systems Engineering and Environmental Engineering →Metrics
- 10:36, 23 March 2017 diff hist +44 Systems Engineering and Environmental Engineering →Personnel Considerations
- 10:35, 23 March 2017 diff hist +44 Systems Engineering and Environmental Engineering →System Description
- 10:35, 23 March 2017 diff hist +44 System Affordability →Tools
- 10:34, 23 March 2017 diff hist +44 System Affordability →Models
- 10:34, 23 March 2017 diff hist +44 System Affordability →Metrics
- 10:34, 23 March 2017 diff hist +44 System Affordability →Discipline Standards
- 10:34, 23 March 2017 diff hist +44 System Affordability →Dependencies
- 10:33, 23 March 2017 diff hist +44 System Affordability →Interactions
- 10:33, 23 March 2017 diff hist +44 System Affordability →Discipline Management
- 10:33, 23 March 2017 diff hist +44 System Affordability →System Description
- 10:32, 23 March 2017 diff hist +44 System Resilience →Dependencies
- 10:31, 23 March 2017 diff hist +44 System Resistance to Electromagnetic Interference →Tools
- 10:31, 23 March 2017 diff hist +44 System Resistance to Electromagnetic Interference →Models
- 10:31, 23 March 2017 diff hist +44 System Resistance to Electromagnetic Interference →Metrics
- 10:30, 23 March 2017 diff hist +44 System Resistance to Electromagnetic Interference →Personnel Considerations
- 10:30, 23 March 2017 diff hist +44 System Resistance to Electromagnetic Interference →Discipline Standards
- 10:30, 23 March 2017 diff hist +44 System Resistance to Electromagnetic Interference →Dependencies
- 10:30, 23 March 2017 diff hist +44 System Resistance to Electromagnetic Interference →Interactions
- 10:29, 23 March 2017 diff hist +44 System Resistance to Electromagnetic Interference →Discipline Management
- 10:29, 23 March 2017 diff hist +44 System Security →Tools
- 10:28, 23 March 2017 diff hist +44 System Security →Models
- 10:28, 23 March 2017 diff hist +44 System Security →Metrics
- 10:27, 23 March 2017 diff hist +44 System Security →Personnel Considerations
- 10:27, 23 March 2017 diff hist +44 System Security →Discipline Standards
- 10:26, 23 March 2017 diff hist +44 System Security →Interactions
- 10:26, 23 March 2017 diff hist +44 System Security →Discipline Management
- 10:25, 23 March 2017 diff hist +44 System Safety →Tools
- 10:25, 23 March 2017 diff hist +44 System Safety →Models
- 10:25, 23 March 2017 diff hist +44 System Safety →Metrics
- 10:24, 23 March 2017 diff hist +43 System Safety →Discipline Standards
- 10:24, 23 March 2017 diff hist +44 System Safety →Dependencies
- 10:24, 23 March 2017 diff hist +44 System Safety →Interactions
- 10:24, 23 March 2017 diff hist +44 System Safety →Discipline Management
- 10:24, 23 March 2017 diff hist +44 System Safety →System Description
- 10:23, 23 March 2017 diff hist +43 Human Systems Integration →Tools
- 10:23, 23 March 2017 diff hist +44 Human Systems Integration →Models
- 10:23, 23 March 2017 diff hist +44 Human Systems Integration →Metrics
- 10:23, 23 March 2017 diff hist +44 Human Systems Integration →Dependencies
- 10:22, 23 March 2017 diff hist +44 Human Systems Integration →Interactions
- 10:22, 23 March 2017 diff hist +45 Human Systems Integration →Discipline Management
- 10:21, 23 March 2017 diff hist +229 Systems Engineering and Environmental Engineering
- 10:20, 23 March 2017 diff hist +229 System Affordability
- 10:19, 23 March 2017 diff hist +228 Manufacturability and Producibility
- 10:19, 23 March 2017 diff hist +229 System Resilience
- 10:18, 23 March 2017 diff hist +229 System Resistance to Electromagnetic Interference
- 10:17, 23 March 2017 diff hist +229 System Security
- 10:17, 23 March 2017 diff hist +229 System Safety
- 10:15, 23 March 2017 diff hist +230 Human Systems Integration
- 10:13, 23 March 2017 diff hist +42 Systems Engineering and Quality Attributes
- 10:03, 23 March 2017 diff hist +436 Systems Engineering and Quality Attributes
- 15:54, 12 September 2016 diff hist -1 Structure of the SEBoK →Part 2: Foundations of Systems Engineering Tag: visualeditor
- 15:52, 12 September 2016 diff hist -7 Structure of the SEBoK
- 14:30, 12 September 2016 diff hist +15 Structure of the SEBoK →Part 2: Foundations of Systems Engineering Tag: visualeditor
- 14:26, 12 September 2016 diff hist +60 Editor's Corner →SEBoK v. 1.7 Tag: visualeditor
- 14:24, 12 September 2016 diff hist +92 Editor's Corner Tag: visualeditor
- 14:18, 12 September 2016 diff hist +694 Editor's Corner
- 14:11, 12 September 2016 diff hist -95 Introduction to SE Transformation
- 22:54, 11 September 2016 diff hist -25 Structure of the SEBoK →Part 6: Related Disciplines
- 22:52, 11 September 2016 diff hist +24 Structure of the SEBoK →Part 4: Applications of Systems Engineering
- 22:51, 11 September 2016 diff hist +1 Structure of the SEBoK →Part 4: Applications of Systems Engineering
- 22:50, 11 September 2016 diff hist +1 Structure of the SEBoK →Part 4: Applications of Systems Engineering Tag: visualeditor
- 22:49, 11 September 2016 diff hist -1 Structure of the SEBoK →Part 4: Applications of Systems Engineering
- 22:48, 11 September 2016 diff hist -26 Structure of the SEBoK →Part 4: Applications of Systems Engineering
- 22:47, 11 September 2016 diff hist +1 Structure of the SEBoK →Part 1: SEBoK Introduction Tag: visualeditor
- 22:45, 11 September 2016 diff hist +30 Structure of the SEBoK →Overview of Parts Tag: visualeditor
- 22:44, 11 September 2016 diff hist -3 Structure of the SEBoK →Part 2: Foundations of Systems Engineering Tag: visualeditor
- 22:43, 11 September 2016 diff hist 0 Structure of the SEBoK →Overview of Parts
- 22:42, 11 September 2016 diff hist 0 Structure of the SEBoK →Part 2: Foundations of Systems Engineering
- 22:42, 11 September 2016 diff hist -1 Structure of the SEBoK →Overview of Parts
- 22:41, 11 September 2016 diff hist 0 Structure of the SEBoK
- 22:37, 11 September 2016 diff hist +2,313 Structure of the SEBoK
- 20:01, 11 September 2016 diff hist +11 Structure of the SEBoK
- 19:59, 11 September 2016 diff hist +2 Structure of the SEBoK
- 19:56, 11 September 2016 diff hist -548 Introduction to the SEBoK →Additional References
- 19:54, 11 September 2016 diff hist +163 Scope of the SEBoK →SEBoK Domain Independent Context
- 19:51, 11 September 2016 diff hist +246 Scope of the SEBoK →SEBoK Domain Independent Context
- 15:01, 6 September 2016 diff hist +23 Related Disciplines
- 15:01, 6 September 2016 diff hist +22 Enabling Systems Engineering
- 15:00, 6 September 2016 diff hist +22 Applications of Systems Engineering
- 14:59, 6 September 2016 diff hist +43 Systems Engineering and Management
- 14:58, 6 September 2016 diff hist -15 Systems Engineering and Management
- 14:57, 6 September 2016 diff hist -14 SEBoK Introduction
- 14:23, 6 September 2016 diff hist -14 Foundations of Systems Engineering Tag: visualeditor-switched
- 14:13, 6 September 2016 diff hist 0 Guide to the Systems Engineering Body of Knowledge (SEBoK) →About the SEBoK Tag: visualeditor
- 13:32, 6 September 2016 diff hist -1 Systems Engineering Implementation Examples
- 13:32, 6 September 2016 diff hist +1 Systems Engineering Implementation Examples
- 13:31, 6 September 2016 diff hist -1 Systems Engineering Implementation Examples
- 13:31, 6 September 2016 diff hist +116 Systems Engineering Implementation Examples
- 13:30, 6 September 2016 diff hist +114 Related Disciplines
- 13:29, 6 September 2016 diff hist -1 Enabling Systems Engineering
- 13:28, 6 September 2016 diff hist +111 Enabling Systems Engineering
- 13:28, 6 September 2016 diff hist +2 Applications of Systems Engineering
- 13:27, 6 September 2016 diff hist +180 Applications of Systems Engineering
- 13:25, 6 September 2016 diff hist +111 Applications of Systems Engineering
- 13:23, 6 September 2016 diff hist +114 Systems Engineering and Management
- 13:21, 6 September 2016 diff hist +116 Foundations of Systems Engineering
- 13:20, 6 September 2016 diff hist +114 SEBoK Introduction
- 13:12, 6 September 2016 diff hist -455 Structure of the SEBoK →Inter-relationships
- 13:11, 6 September 2016 diff hist +1,369 Structure of the SEBoK
- 13:07, 6 September 2016 diff hist +344 Healthcare Systems Engineering
- 13:05, 6 September 2016 diff hist +36 Applications of Systems Engineering
- 13:04, 6 September 2016 diff hist -3,901 Applications of Systems Engineering
- 12:00, 6 September 2016 diff hist -545 Applications of Systems Engineering
- 10:51, 6 September 2016 diff hist +45 Guide to the Systems Engineering Body of Knowledge (SEBoK) →About the SEBoK
- 09:23, 6 September 2016 diff hist -398 Scope of the SEBoK →References
- 09:23, 6 September 2016 diff hist -4,064 Introduction to the SEBoK
- 09:21, 6 September 2016 diff hist -549 Scope of the SEBoK →References
- 09:20, 6 September 2016 diff hist -1,377 Scope of the SEBoK →References
- 09:18, 6 September 2016 diff hist -2,662 Scope of the SEBoK →SEBoK Life Cycle Context
- 09:15, 6 September 2016 diff hist +5,118 Scope of the SEBoK
- 09:07, 6 September 2016 diff hist +1,120 Guide to the Systems Engineering Body of Knowledge (SEBoK)
- 09:02, 6 September 2016 diff hist -1 Guide to the Systems Engineering Body of Knowledge (SEBoK) →About the SEBoK Tag: visualeditor
- 09:01, 6 September 2016 diff hist -993 Guide to the Systems Engineering Body of Knowledge (SEBoK) →About the SEBoK
- 08:57, 6 September 2016 diff hist +150 Guide to the Systems Engineering Body of Knowledge (SEBoK) →About the SEBoK
- 08:52, 6 September 2016 diff hist 0 Guide to the Systems Engineering Body of Knowledge (SEBoK)
- 09:53, 31 August 2016 diff hist -117 Guide to the Systems Engineering Body of Knowledge (SEBoK) →About the SEBoK
- 03:42, 22 March 2016 diff hist -827 Editor's Corner
- 02:15, 22 March 2016 diff hist 0 Introduction to Systems Engineering Fundamentals →References
- 02:13, 22 March 2016 diff hist -36 Introduction to Systems Engineering Fundamentals →System-of-Interest and Systems Context
- 02:12, 22 March 2016 diff hist -21 Introduction to Systems Engineering Fundamentals →System-of-Interest and Systems Context
- 02:11, 22 March 2016 diff hist +22 Introduction to Systems Engineering Fundamentals →System-of-Interest and Systems Context Tag: visualeditor
- 02:10, 22 March 2016 diff hist -174 Introduction to Systems Engineering Fundamentals →System-of-Interest and Systems Context
- 02:08, 22 March 2016 diff hist -2 Introduction to Systems Engineering Fundamentals →Systems and System Elements Tag: visualeditor
- 02:05, 22 March 2016 diff hist -2 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 02:01, 22 March 2016 diff hist 0 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 01:55, 22 March 2016 diff hist -13 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 01:52, 22 March 2016 diff hist 0 Introduction to Systems Engineering Fundamentals →Systems and System Elements
- 01:43, 22 March 2016 diff hist -73 Introduction to Systems Engineering Fundamentals →A Basic View of Systems
- 01:40, 22 March 2016 diff hist +1 Introduction to Systems Engineering Fundamentals →A Basic View of Systems
- 01:37, 22 March 2016 diff hist -1 Introduction to Systems Engineering Fundamentals →A Basic View of Systems Tag: visualeditor
- 20:10, 21 March 2016 diff hist -2,119 Introduction to Systems Engineering Fundamentals
- 20:43, 20 March 2016 diff hist +4 Configuration Management
- 19:07, 6 March 2016 diff hist 0 Introduction to Systems Engineering Fundamentals →Open Systems Domains
- 19:05, 6 March 2016 diff hist -870 Introduction to Systems Engineering Fundamentals →Open Systems Domains
- 18:43, 6 March 2016 diff hist +301 Introduction to Systems Engineering Fundamentals →Open Systems
- 18:30, 6 March 2016 diff hist -117 Introduction to Systems Engineering Fundamentals →Open Systems Tag: visualeditor
- 17:45, 6 March 2016 diff hist -287 Introduction to Systems Engineering Fundamentals →Open Systems Domains
- 17:34, 6 March 2016 diff hist +2 Introduction to Systems Engineering Fundamentals →Open Systems Domains
- 17:27, 6 March 2016 diff hist +66 Systems Engineering Overview →Systems Engineering and Engineered Systems Project Life Cycle Context
- 17:23, 6 March 2016 diff hist +49 Systems Engineering Overview →Scope of Systems Engineering within the Engineered Systems Domain
- 17:19, 6 March 2016 diff hist -30 Systems Engineering Overview →Systems and Systems Engineering
- 17:18, 6 March 2016 diff hist -38 Systems Engineering Overview →Systems and Systems Engineering
- 17:17, 6 March 2016 diff hist +66 engineered system
- 17:15, 6 March 2016 diff hist -1 engineered system
- 17:15, 6 March 2016 diff hist -178 engineered system