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tegwick
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Cross-dive synthesis (research/260614-shard-spectrum-synthesis/) reading the two Nelson conceptual systems, four engines, and three modern tools across each other: a shard family matrix and eleven capability spectra (addressing, content identity, structure, history, native query, translation, attachment mode, operational envelope, access grant, write granularity, content types) — positions anchored at both ends by a real system, federation ops degrading by position. Through-lines: files-canonical/index-derived wins; fine-grained addressing is adoptable; transclusion=clone=embed is one primitive; structure/history federate iff in-text; attach mode is a per-binding choice; Notion proves the platform can enforce no-silent-mutation. Folded into SHARD-WP-0002: T11 reframed around the eleven spectra; T12 page model stretched four ways (prose + typed records + non-Markdown assets + query-defined); T13 adds Notion supplement; T14 rewritten as the three-mode attachment taxonomy (file-store / in-engine-host / external-API); T15 adds lossy-with-fidelity-report; new T16 (addressing, content identity, dimensional/query navigation). UC coverage UC-34-43 -> UC-34-59. Workplan now 16 tasks. No new UCs (synthesis only). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
48 lines
2.3 KiB
Markdown
48 lines
2.3 KiB
Markdown
# 260614 — Shard spectrum synthesis (one capability model across nine systems)
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Date: 2026-06-14
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## What this is
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A **synthesis** (no new external research) that reads the nine studied systems *across*
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each other and distills them into a single comparative model feeding the **shard adapter
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contract** (`SHARD-WP-0002`).
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The nine: two conceptual ancestors (**Xanadu**, **ZigZag**), four engines (**XWiki,
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TWiki, Foswiki** + the wiki-engines landscape), and three modern tools (**Roam,
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Obsidian, Notion**), against the federation/origin research.
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Centerpieces:
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- **The shard family matrix** — every candidate backend × {substrate, attach mode,
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addressing, structure, history, query, transclusion, →Markdown, write granularity},
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with Xanadu/ZigZag as the ideal anchors.
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- **The eleven capability spectra** — the claim that the adapter contract should model
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*positions on spectra* (addressing, content identity, structure, history, query,
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translation, attachment mode, operational envelope, access grant, write granularity,
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content types), each anchored at both ends by a real system, with federation ops
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degrading by position.
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- **UC-44–UC-59 → workplan task mapping**, including one genuinely new thread (T16:
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addressing, content identity, dimensional/query navigation).
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## Contents
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| Path | Role |
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|------|------|
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| `findings.md` | Family matrix, the eleven spectra, cross-cutting through-lines, UC→task fold-in, recommendations/decisions, escalated open questions |
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## Status
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Synthesis complete. No new use cases (consolidation only). Feeds `SHARD-WP-0002`: T11
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reframed around the eleven spectra; T12 page-model breadth (prose + typed records +
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non-Markdown assets + query-defined); T13 history confirmed; T14 three-mode attachment
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taxonomy; T15 lossy-with-fidelity-report; **new T16** (addressing, content identity,
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dimensional/query navigation). UC coverage in the workplan extended UC-34–UC-43 →
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UC-34–UC-59.
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**Through-lines recorded:** files-canonical/index-derived is the winning architecture;
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fine-grained addressing is real and adoptable (adopt native, fingerprint otherwise);
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transclusion ⇄ clone ⇄ embed is one primitive; structure/history federate iff in text;
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attach mode is a per-binding capability-gated choice; Notion proves the platform can
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*enforce* no-silent-mutation via scoped grants.
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</content>
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