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ToR2 Execution Workflow: Blueprint for a Robust Global Geodetic Supply Chain ​

This workflow defines the step-by-step process for executing the Terms of Reference 2 (ToR2) using the established Context Graph architecture and the specialized UN-GGCE AI agents.

New Agent: Technical Writer ​

To ensure all deliverables meet the formal, intergovernmental standards of the UN-GGCE (matching the "State of Geodesy 2026" style), a new technical-writer agent has been added to the team.

Workflow by Assignment ​

Work Assignment 1: Principles for a Robust Global Geodetic Supply Chain ​

Objective: Establish guiding principles for a "basic" supply chain architecture.

  • [x] Step 1: systems-architect defines the guiding principles (redundancy, distributed accountability, resilient critical paths) and establishes criteria for minimum viable maturity across PPTD dimensions.
  • [x] Step 2: quality-assurance cross-checks the principles against Phase 1 Joint Development Plan objectives.
  • [x] Step 3: technical-writer drafts the formal Principles Document.
  • [x] Step 4: quality-assurance reviews the draft Principles Document for alignment with UN-GGCE standards and ToR obligations.
  • [➔] Step 5 (GATEWAY): Human Review & Decision Log.
    • First draft submitted.
    • Reviewed by Nicholas Brown (Head of UN-GGCE).
    • Draft updated based on feedback.
    • 2026-07-05: Nick Brown has largely approved the tier structure (appendix_egv_levels_and_tiers.md v1.1) and the Investment Prioritization and Risk Rubric (1b_investment_rubric.md v3.0, two-track framework). See decision log entry 2026-07-05. Residual reservations behind "largely" to be confirmed.
    • Status: Confirm whether formal approval by Richard Gross (Chair of the IAG) is still required or is superseded by Nick Brown's approval.
  • Validation Output: outputs/1_basic_principles.md, outputs/1b_investment_rubric.md, outputs/appendix_egv_levels_and_tiers.md (and OTel trace).

Work Assignment 2: Critical Product Mapping Using Essential Geodetic Variables ​

Objective: Map the end-to-end delivery workflows for the five critical geodetic products (Satellite Orbits, ITRF, EOP, ICRF, Global Gravity Model).

  • [x] Step 1 (Research): geodetic-researcher maps workflows from Level 1 EGVs to Level 3 EGVs for all five products, identifying node topologies, capability dependencies, and operational bottlenecks.
  • [x] Step 2 (Narratives & Diagrams): technical-writer compiled mapping data into formal narrative reports (outputs/*_workflow_description.md) and Mermaid diagrams. QA approved 2026-04-28.
  • [x] Step 3 (Draft DataBooks): knowledge-graph-engineer generated baseline DataBooks for all five workflows. ITRF, EOP, ICRF, Gravity are v0.1 stubs; Satellite Orbits is v1.0.0. All pushed to Jena 2026-06-10.
  • [/] Step 3b (Upgrade Workflow DataBooks — PARTIAL): v0.2 meta graphs pushed for ITRF/EOP/ICRF/Gravity but topology graphs remain v0.1. No longer blocks WA2 scoring — the 2026-06-22 rubric run scored directly at tier granularity. Remains open for capability-level traceability (canonical ggsc-cap: IRIs, disaggregated PPTD sub-scores per tier node). See docs/wa2-wa3-submission-brief.md Step 2.
  • [x] Step 4 (Mathematical Rubric): Scoring run completed 2026-06-22 (urn:ggsc:activity:wa3-risk-scoring-2026-06-22, two-factor operational model per approved two-track rubric). All 25 tier scores in named graph https://w3id.org/ggsc/graph/tier-risk-scores-2026-06-22. Superseded 2026-06-10 graph dropped from Fuseki 2026-07-05.
  • [x] Step 5 (Revise Workflow Documents): All five outputs/*_workflow_description.md updated with principle citations and disaggregated PPTD data (June 2026); all 25 tier score callouts refreshed from the 06-22 graph 2026-07-05 (several classifications changed under the current bands — EOP T1, ICRF T0, Gravity T2/T3 dropped from High to Significant).
  • [x] Step 5b (Produce Mapping Report): outputs/2_product_mapping_report.md v2.0 produced 2026-07-05 — aligned to approved two-track framework, all scores from the 06-22 graph, Purpose and Reading Guide + Key Terms added for HQ reviewers per Nick Brown's standing requirement.
  • [ ] Step 6 (GATEWAY): Human Review & Decision Log. Submit WA2 v2.0 mapping report to Nick Brown. Record in outputs/project/decisions.md.
  • Validation Output: outputs/2_product_mapping_report.md (v2.0), individual workflow markdown/mermaid files, DataBook files in Jena.

Work Assignment 3: Risk Assessment and Gap Analysis ​

Objective: Analyze workflows against Phase 1 maturity scores and basic principles.

  • [/] Step 1 (Draft Risk Assessment): Draft exists at outputs/ggsc-wa3-risk-assessment.md. Known defects: ACC/SPOCC bottleneck absent from §3.4; no WA2 tier citations; CNN citation error in §3.4; §5.2 uses binary threshold instead of four-tier rubric. See docs/wa2-wa3-submission-brief.md Step 6 for mandatory fixes (brief dated 2026-06-04 — re-verify each item before executing; some have been overtaken by the 06-22 rescore).
  • [x] Step 2 (WA3 DataBooks in Jena): All 20 country risk projection DataBooks, event graph holon, and KG holon pushed to Jena 2026-06-10. Event graph available at urn:ggsc:holon:event-graph:2026-05-07#*.
  • [x] Step 3 (Rewrite outputs/3_risk_and_gap_analysis.md): v2.0.0 produced 2026-07-06. All 25 tier scores and bands from tier-risk-scores-2026-06-22; two-track methodology with governance-track findings per section; capability claims re-verified against DataBook v1.3.0 (Category A list corrected to 9 capabilities incl. Mandate; gravity acquisition P5 claim removed — score is 3.30 not 2.00; Appendix A rebuilt); named-graph IRIs per product domain; event IDs verified against the event graph; HQ Purpose and Reading Guide added; EOP and Gravity domains reclassified Significant; priority ranking re-sequenced (11 entries, EOP Combination added at #4).
  • [ ] Step 4 (QA): quality-assurance validates all SHACL, citation fixes, rubric tiers, and WA2 cross-references. Sign off in outputs/project/decisions.md.
  • [ ] Step 5 (GATEWAY): Human Review & Decision Log.
  • Validation Output: outputs/3_risk_and_gap_analysis.md (v1.0.0 exists but requires rewrite — see Step 3; SHACL validation logs).

Cross-Cutting Follow-Ups (as of 2026-07-05) ​

  • [ ] Math doc reconciliation: data/mathmatical_rubric.md still documents the retired v3.0 three-factor model (Recovery Factor). Update to v4.0 matching the approved two-track framework. Documentation-only — the Jena scores already reflect the approved model.
  • [ ] Confirm scope of Nick Brown's approval: clarify residual reservations behind "largely approved" before the WA3 rewrite is finalized.
  • [ ] HQ readability standing requirement: every deliverable from WA2 onward must carry a plain-language lead-in, ToR linkage, and expanded acronyms for UN Headquarters reviewers (decision log 2026-07-05). Applied to WA2 v2.0; apply to WA3, WA4, WA5 at drafting time.

Work Assignment 4: Basic Supply Chain Architecture Definition ​

Objective: Define the target state architecture that complies with the basic principles.

  • Step 1: systems-architect redesigns the product delivery workflows and defines the "basic" requirements for all six capability domains.
  • Step 2: knowledge-graph-engineer models the target architecture in the Context Graph.
  • Step 3: quality-assurance verifies the target architecture resolves all Priority 1 gaps.
  • Step 4: technical-writer drafts the Basic Supply Chain Architecture Document.
  • Step 5: quality-assurance reviews the drafted Architecture Document against the ToR requirements and defined principles.
  • Step 6 (GATEWAY): Human Review & Decision Log. Final review of the quality-assured architecture. Record the approved architecture design and implementation constraints in outputs/project/decisions.md.
  • Validation Output: outputs/4_target_architecture.md.

Work Assignment 5: Implementation Roadmap and Blueprint Report ​

Objective: Compile all work into a cohesive Blueprint and prioritized Roadmap.

  • Step 1: roadmap-planner maps architectural changes to JDP activities and sequences them into a phased roadmap.
  • Step 2: technical-writer integrates all previous deliverables into the final "Blueprint for a Robust Global Geodetic Supply Chain."
  • Step 3: quality-assurance performs a final, comprehensive review of the entire Blueprint and Roadmap.
  • Step 4 (GATEWAY): Final Human Review & Sign-off. Formal approval of the quality-assured Blueprint and Roadmap. The final delivery milestone is recorded in outputs/project/decisions.md.
  • Validation Output: outputs/5_blueprint_final_report.md (and finalized Context Graph snapshot).