Requirements Writing - Acronyms and abbreviations
| Term | Meaning |
|---|---|
| ABL | Allocated Baseline |
| ANSI | American National Standards Institute |
| AT&E | Acceptance Test and Evaluation |
| ATR | Acceptance Test Report |
| BA | Business analyst |
| BC | Business Case |
| BoE | Basis of Estimates |
| BNR | Business Needs and Requirements |
| BRS | Business Requirement Specification |
| CAD | Computer-aided design |
| CAE | Computer-aided engineering |
| CAM | Computer-aided manufacturing |
| CASE | Computer-aided Support Environment |
| CCB | Configuration Control Board |
| CCP | Contract Change Proposal |
| CDR | Critical Design Review |
| CI | Configuration Item |
| CM | Configuration Management |
| CMP | Configuration Management Plan |
| COD | Concept of Operations Document |
| COI | Critical Operational Issue |
| CONOPS | Concept of Operations |
| COTS | Commercial-off-the-Shelf |
| CSC | Computer Software Component |
| CSCI | Computer Software Configuration Item |
| CSU | Computer Software Unit |
| CWBS | Contract Work Breakdown Structure |
| DDR | Detailed Design Review |
| DID | Data Item Description |
| DI(G) | Defence Instruction (General) |
| DIP | Defence Investment Plan |
| DLOD | Defence Lines of Development |
| DoD | (US) Department of Defense |
| DOTMLPF | Doctrine, organization, training, materiel, leadership, personnel, facilities |
| DT&E | Developmental Test and Evaluation |
| ECP | Engineering Change Proposal |
| EIA | Electronics Industries Association |
| EMC | Electromagnetic Compatibility |
| EMI | Electromagnetic Interference |
| FBL | Functional Baseline |
| FCA | Functional Configuration Audit |
| FEA | Finite element analysis |
| FFBD | Functional Flow Block Diagram |
| FIC | Fundamental Inputs to Capability |
| FMECA | Failure mode effects and criticality assessments |
| FoS | Family of Systems |
| FQR | Formal Qualification Review |
| FRACAS | Failure reporting, analysis and corrective action system |
| GOTS | Government off the Shelf |
| GPS | Global Positioning System |
| HDBK | Handbook |
| HMI | Human Machine Interface |
| HR | Human Resources |
| HW | Hardware |
| HWCI | Hardware Configuration Item |
| ICD | Interface Control Document |
| ICL | Interface Control List |
| ICWG | Interface (integration) Control Working Group |
| IEC | International Electrotechnical Commission |
| IEEE | Institute of Electrical and Electronics Engineers |
| IIBA | International Institute of Business Analysis |
| IIS | Introduction into Service |
| ILS | Integrated Logistics Support |
| INCOSE | International Council on Systems Engineering |
| IS | Interim Standard |
| ISO | International Organization for Standardization |
| LC | Lifecycle Concepts |
| LCC | Lifecycle Cost |
| LSC | Logistic support concept |
| MBD | Model-based design |
| MBSE | Model-based systems engineering |
| MIL-HDBK | (US) Military Handbook |
| MIL-STD | (US) Military Standard |
| MOE | Measure of Effectiveness |
| MOP | Measure of Performance |
| MOS | Measure of Suitability |
| MOTS | Military off the Shelf |
| NCOSE | National Council on Systems Engineering |
| NDI | Non-developmental item |
| NRM | (INCOSE) Needs and Requirements Manual |
| OpsCon | Operational Concept |
| OT&E | Operational Test and Evaluation |
| OTS | Off the Shelf |
| PBL | Product Baseline |
| PCA | Physical Configuration Audit |
| PDR | Preliminary Design Review |
| PLC | Preliminary Life-cycle Concepts |
| PLM | Product lifecycle management |
| PM | Project Management |
| PMI | Project Management Institute |
| PMP | Project Management Plan |
| PoS | Portfolio of Systems |
| PRICIE | Personnel, research and development, infrastructure, concepts and doctrine, information technology, equipment |
| PSTN | Public Subscriber Telephone Network |
| PWBS | Program/Project Work Breakdown Structure |
| QA | Quality Assurance |
| RAAF | Royal Australian Air Force |
| RBS | Requirements Breakdown Structure |
| RF | Radio frequency |
| RFT | Request for Tender |
| RMP | Risk Management Plan |
| SBP | Strategic Business Plan |
| SBS | System Breakdown Structure |
| SDD | System Design Document |
| SDG | Sustainable Development Goals |
| SDR | System Design (Definition) Review |
| SE | Systems Engineering |
| SEBoK | Systems Engineering Body of Knowledge |
| SEDS | Systems Engineering Detailed Schedule |
| SEI | Software Engineering Institute |
| SEMP | Systems Engineering Management Plan |
| SEMS | Systems Engineering Master Schedule |
| SNR | Stakeholder Needs and Requirements |
| SOI | System of Interest |
| SOP | Standard Operating Procedure(s) |
| SoS | System of Systems |
| SOW | Statement of Work |
| SRD | Stakeholder Requirement Document |
| SRR | Systems Requirements Review |
| SS | (Mission) System Specification |
| SSCC | Support System Constituent Capabilities |
| STD | Standard |
| StRS | Stakeholder Requirements Specification |
| SVR | System Verification Review |
| SW | Software |
| SWEBOK | Software Engineering Body of Knowledge |
| SyRS | System Requirements Specification |
| SySML | System Modelling Language |
| SW | Software |
| T&E | Test and Evaluation |
| TCO | Total Cost of Ownership |
| TEMP | Test and Evaluation Master Plan |
| TPM | Technical Performance Measure |
| TRAP | Technical Review and Audit Plan |
| TRA | Technical Risk Assessment |
| TRL | Technical Readiness Level |
| TRR | Test Readiness Review |
| UML | Uniform Modelling Language |
| V&V | Verification and Validation |
| VCRM | Verification Cross Reference Matrix |
| WBS | Work Breakdown Structure |
| WSOI | Wider SOI |
| V&V | Verification and Validation |
| VCRM | Verification Cross Reference Matrix |
| VFM | Value for Money |
| WBS | Work Breakdown Structure |
| WHS | Workplace Health and Safety |
| WSOI | Wider SOI |
Supplementary Material
You may be interested in this other supplementary material :
Related Systems Engineering Books
You may be interested in the following related books:
R. Faulconbridge and M. Ryan, Applied Systems Engineering, 2nd ed, Artech House, 2026.
R. Faulconbridge and M. Ryan, Managing Complex Technical Projects, 2nd ed, Artech House, 2026.
M. Ryan, Requirements Practice in Conceptual Design, 2nd ed, Artech House, 2026.
edVirtus Systems Engineering Courses
If you are specifically interested in requirements writing, you may be interested in the edVirtus course:
You may be interested in the related courses:
Three-day Systems Engineering—Introduction.
Five-day Systems Engineering—Advanced.
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