Atlas Folder Migration Plan

Purpose

This plan stabilizes the ECC Research Atlas folder taxonomy after the Sustainable / green ECC extension sources (ingested 2026-08-18) step created several off-taxonomy domain folders. No files are moved by this plan; it is a proposed migration map for approval.

Canonical phase-1 folder taxonomy

00_sources/
01_people/
02_concepts/
03_papers/
04_material_systems/
05_experiments/
06_lab_position/
07_visualization/
08_teaching/
09_ai_workflows/

Off-taxonomy folders found

Folder	Files	Markdown refs	CSV refs	Interpretation
`03_durability/`	3	107	115	Durability property nodes created during lab/sustainable ingest; should mostly become concept/material-system nodes.
`03_micromechanics/`	5	336	209	Micromechanics subdomain duplicated existing concept/experiment nodes.
`06_sustainability/`	10	604	533	Sustainability subdomain duplicated concept/material-system layers and conflicts with 06_lab_position numbering.
`07_computational_design/`	1	8	10	Computational design duplicated 09_ai_workflows and conflicts with 07_visualization numbering.

Recommended migration principle

Use soft migration first: copy/merge content to canonical destination, leave old file as a redirect note, then patch links and CSV paths.
Do not create new top-level folders for domains already represented by 02_concepts, 04_material_systems, 05_experiments, or 09_ai_workflows.
Preserve source-grounded evidence hierarchy: source records and paper cards remain in 00_sources and 03_papers; conceptual synthesis belongs in 02_concepts or 04_material_systems.

File-level migration map

Old path	Proposed canonical path	Action	Destination exists	MD refs	CSV refs	Referencing files	Reason
`02_concepts/transport_properties.md`	`02_concepts/transport_properties.md`	`move`	false	15	13	15	Durability resistance property belongs in concept layer.
`02_concepts/permeability.md`	`02_concepts/permeability.md`	`move`	false	16	10	20	Transport/durability property belongs in concept layer.
`04_material_systems/self_healing_ecc.md`	`04_material_systems/self_healing_ecc.md`	`merge_then_redirect`	true	76	92	32	Self-healing already has canonical material-system synthesis node.
`05_experiments/single_fiber_pullout.md`	`05_experiments/single_fiber_pullout.md`	`merge_then_redirect`	true	141	87	100	Single-fiber pullout is an experiment/test node.
`02_concepts/interface_properties.md`	`02_concepts/interface_properties.md`	`merge_then_redirect`	true	16	11	16	Interface is canonical under interface_properties.
`02_concepts/fiber_bridging_law.md`	`02_concepts/fiber_bridging_law.md`	`merge_then_redirect`	true	83	38	67	Bridging law is canonical under fiber_bridging_law.
`02_concepts/flaw_design.md`	`02_concepts/flaw_design.md`	`merge_then_redirect`	true	81	53	58	Matrix toughness effects belong under matrix tailoring.
`02_concepts/fiber_geometry_effects.md`	`02_concepts/fiber_geometry_effects.md`	`move_or_create`	false	15	20	13	Reusable fiber geometry concept; create only if not absorbed into fiber_bridging_law.
`02_concepts/life_cycle_analysis.md`	`02_concepts/life_cycle_analysis.md`	`merge_then_redirect`	true	196	165	119	Unify LCA naming with existing life_cycle_analysis.
`02_concepts/embodied_carbon.md`	`02_concepts/embodied_carbon.md`	`move`	false	8	9	11	Embodied-carbon calculation is a sustainability concept/method.
`02_concepts/embodied_carbon.md`	`02_concepts/embodied_carbon.md`	`move`	false	8	9	11	Carbon-footprint reduction is a concept.
`02_concepts/circular_economy_materials.md`	`02_concepts/circular_economy_materials.md`	`move`	false	272	220	164	Circular economy materials is a sustainability concept.
`02_concepts/supplementary_cementitious_materials.md`	`02_concepts/supplementary_cementitious_materials.md`	`move`	false	8	9	11	SCM availability/supply is a sustainability concept.
`02_concepts/supplementary_cementitious_materials.md`	`02_concepts/supplementary_cementitious_materials.md`	`move`	false	8	9	11	SCM is a concept/ingredient class supporting Green ECC.
`02_concepts/durability.md`	`02_concepts/durability.md`	`merge_then_redirect`	true	55	57	35	Absorb into existing durability concept.
`04_material_systems/low_carbon_binders.md`	`04_material_systems/low_carbon_binders.md`	`move`	false	15	18	14	Low-carbon binder family belongs in material-system layer.
`04_material_systems/cementless_composites.md`	`04_material_systems/cementless_composites.md`	`merge_then_redirect`	true	26	28	23	AAS binders fit canonical cementless/geopolymer material system.
`04_material_systems/industrial_waste_streams.md`	`04_material_systems/industrial_waste_streams.md`	`move_or_create`	true	8	9	11	Industrial waste streams are material-system inputs.
`02_concepts/machine_learning_models.md`	`02_concepts/machine_learning_models.md`	`move`	false	8	10	10	ML/computational design belongs under AI workflow layer.

Proposed execution phases

Phase 0 — approval checkpoint

Do not move files until this plan is approved. The reference counts are high, so direct deletion would break many links.

Phase 1 — create or merge canonical destination nodes

For move actions, copy the full node to the canonical destination. For merge_then_redirect, append only unique source-grounded content to the existing canonical node under a section such as ## Migrated supporting notes. For move_or_create, create the destination only if the concept is not already covered by a stronger existing node.

Phase 2 — replace old files with redirect notes

Each old file should remain temporarily as a redirect note, e.g. This node has moved to ... Do not add new evidence here. This avoids breaking any unpatched links while the dashboard and graph are regenerated.

Phase 3 — patch references

Patch Markdown and CSV references from old paths to new paths in: claim-evidence matrices, source indexes, paper cards, source notes, graph edge files, lab positioning files, teaching files, and AI workflow files.

Phase 4 — regenerate graph and dashboard

Regenerate rendered Markdown pages, graph edge views, dashboard links, and validation reports.

Phase 5 — final cleanup

After at least one validation pass with zero missing links, either keep redirect notes permanently or remove empty old folders if no remaining references exist.

High-risk items

02_concepts/circular_economy_materials.md and 02_concepts/life_cycle_analysis.md have many references; migrate carefully.
05_experiments/single_fiber_pullout.md, fiber_bridging_constitutive_law.md, and matrix_toughness_effects.md have many sustainable-extension references; merge content into canonical nodes before patching.
04_material_systems/self_healing_ecc.md should not compete with 04_material_systems/self_healing_ecc.md; merge, then redirect.

Validation criteria after migration

No references to off-taxonomy folders remain in final CSV/MD files except redirect notes and this plan.
graph_paper_to_node_edges.csv, graph_concept_to_concept_edges.csv, and graph_lab_to_global_edges.csv have zero missing target files.
Dashboard rendered Markdown pages regenerate without missing links.
index.md and dashboard source cards reflect the canonical taxonomy.