DGIWG 906 METADATA ROADMAP Document type: Enterprise Document date: 06 July 2020 Edition: 2.3.0 Supersedes: This document supersedes DGIWG – 906 Ed. 2.2, DGIWG Metadata Roadmap, dated 14 December 2017 Responsible Party: Defence Geospatial Information Working Group (DGIWG) Audience: This document is approved for public release and is available on the DGIWG website, https://www.dgiwg.org/ Abstract: The activities defined in this document are intended to serve as a guide to facilitate program/project management undertaken by the DGIWG in response to future nation needs. The document places special emphasis on activities that promote interoperability of geospatial data, products, and services. The document is reviewed annually and is subject to change without notice. Copyright: © Copyright DGIWG. Licensed under the terms in CC BY 4.0. DN:15-035r2 06 July 2020 Table of Contents 1. Scope ............................................................................................................................................... 1 2. Purpose ............................................................................................................................................ 1 3. References ....................................................................................................................................... 1 3.1. ISO references ...................................................................................................................... 1 3.2. OGC standards ..................................................................................................................... 2 3.3. W3C standards...................................................................................................................... 2 3.4. DGIWG standards ................................................................................................................. 3 3.5. NATO Standards ................................................................................................................... 3 3.6. Other standards .................................................................................................................... 3 4. Terms, definitions, and abbreviations .............................................................................................. 3 4.1. Definitions .............................................................................................................................. 3 4.1.1. Application Programming Interface ................................................................................... 3 4.1.2. Catalogue .......................................................................................................................... 3 4.1.3. Classification Scheme ....................................................................................................... 3 4.1.4. Concept ............................................................................................................................. 3 4.1.5. Dataset .............................................................................................................................. 3 4.1.6. Dataset series ................................................................................................................... 3 4.1.7. Linked Data ....................................................................................................................... 4 4.1.8. Metadata ........................................................................................................................... 4 4.1.9. Namespace ....................................................................................................................... 4 4.1.10. Ontology ............................................................................................................................ 4 4.1.11. Profile ................................................................................................................................ 4 4.1.12. Register ............................................................................................................................. 4 4.1.13. Registry ............................................................................................................................. 4 4.1.14. Resource ........................................................................................................................... 4 4.2. Abbreviations......................................................................................................................... 4 5. Metadata Standardisation – present state ....................................................................................... 7 5.1. Civil ....................................................................................................................................... 7 5.1.1. ISO TC211 Metadata Standards ....................................................................................... 7 5.1.2. ISO TC211 Metadata Implementation (Encoding) Standards ........................................ 12 5.1.3. Other Metadata Initiatives ............................................................................................... 12 5.1.4. Open Geospatial Consortium .......................................................................................... 13 5.1.5. Data Catalogue and Service Vocabularies (Metadata) ................................................... 14 5.1.6. Register Standards.......................................................................................................... 15 5.1.7. Registers and Code Lists ................................................................................................ 16 5.2. Defence ............................................................................................................................... 17 5.2.1. Defence Metadata Specifications .................................................................................... 17 5.2.2. Defence Profiles of the ISO Metadata Standards ........................................................... 18 5.2.3. Example of Military National Metadata Standards/Profiles ............................................. 18 5.2.4. Defence Metadata services ............................................................................................. 18 5.2.5. Defence Metadata registers and code lists ..................................................................... 19 6. Technology considerations ............................................................................................................ 19 6.1. Existing ................................................................................................................................ 19 6.2. Emerging ............................................................................................................................. 19 6.2.1. Emerging encoding formats ............................................................................................ 19 6.2.2. Unique Resource Identifiers and Semantic Web ............................................................ 19 6.2.3. Spatial Data on the Web ................................................................................................. 20 6.2.4. Other Types of Geospatial Information and their Uses ................................................... 20 6.2.5. Digital twin ....................................................................................................................... 20 ii DN:15-035r2 06 July 2020 6.2.6. Dynamic Metadata .......................................................................................................... 20 6.2.7. Augmented / Virtual Reality ............................................................................................. 21 6.2.8. Research and Development Activities ............................................................................ 21 7. Metadata standardisation - future state ......................................................................................... 24 7.1. Target objectives ................................................................................................................. 24 7.1.1. Short-term vision (2 years) .............................................................................................. 24 7.1.2. Mid-term vision (5 years) ................................................................................................. 24 7.1.3. Long-term vision (10 years) ............................................................................................ 24 7.2. Geospatial Metadata content .............................................................................................. 25 7.2.1. Feature level Metadata ................................................................................................... 25 7.2.2. Product specification Metadata ....................................................................................... 25 7.2.3. DGIWG Product Object concept ..................................................................................... 25 7.2.4. Ontologies ....................................................................................................................... 25 7.2.5. Human Geography .......................................................................................................... 25 7.3. Geospatial services ............................................................................................................. 26 7.4. Standardisation