tegwick
700566b1e2
Extends the capability model to the nine WP-0003 engines (~23 systems total). Per-shard spectra 13 -> 14 (adds provenance granularity); refines merge-model (+fork/journal-replay, +coexist-with-rank), attachment-mode (+git-IS-store, +container, +direct-DB, +REST/file-store-hybrid, +external-API payload-format facet), native-query (+SPARQL/RDF far-end), history (+DB-rows, +partial), structure (+typed-graph, +inline-embedded objects), content-opacity (+lossy-exportable), write-granularity (+story-item, +section-anchor). Headline: new federation-model taxonomy (S2.5) -- federation is plural (fork+journal / VCS-replication+ping / query-time graph join / feed aggregation / activity streams / engine-mirror), a selectable/composable coordination-layer axis feeding SHARD-WP-0002 T1-T6. Folds UC-68-82 into the workplan; no new UCs, no INTENT boundary change. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
260614 — Shard spectrum synthesis (one capability model across the full dive set)
Date: 2026-06-14 · revised 2026-06-14 (v3)
What this is
A synthesis (no new external research) that reads every studied system across the
others and distills them into a single comparative model feeding the shard adapter
contract and the federation track (SHARD-WP-0002).
v3 extends the model to the SHARD-WP-0003 engine batch (Federated Wiki, Wikibase/ Wikidata, the git-forge wikis Gitea/GitLab/GitHub, TiddlyWiki, ikiwiki, Salesforce Quip, MojoMojo, Oddmuse, UseModWiki) — ~23 systems in all. Per-shard spectra grow from thirteen to fourteen (adds provenance granularity), and a new coordination-layer axis is introduced: the federation-model taxonomy.
Centerpieces:
- The shard family matrix — every candidate backend × {substrate, attach mode(s), addressing, structure, history, merge, query, →Markdown, opacity}, with Xanadu/ZigZag as ideal anchors and Federated Wiki as the federation-model anchor. v3 adds the flat-file floor (Oddmuse/UseModWiki), git-IS-store (forge wikis/ikiwiki), TiddlyWiki, MojoMojo (direct-DB), Quip (external-API/HTML), and Wikibase (typed-graph far-end).
- The fourteen capability spectra — the claim that the adapter contract should model positions on spectra, each anchored at both ends by a real system, with federation ops degrading by position. v3 adds provenance granularity (14th: per-shard → per-page → per-edit → per-statement/value), and refines merge-model (+fork/journal-replay, +coexist-with-rank), attachment-mode (+git-IS-store, +container, +direct-DB, +REST/file-store-hybrid, +external-API payload-format facet), native-query (+SPARQL/RDF far-end, +filter mid), history (+DB-version-rows, +partial/truncated), structure (+typed-graph, +inline-embedded objects), content-opacity (+proprietary-lossy-exportable), write-granularity (+story-item, +section-anchor).
- The federation-model taxonomy (§2.5, new) — federation itself is plural: fork+journal
(Federated Wiki), VCS-replication+ping (ikiwiki), query-time graph join (Wikibase SPARQL
SERVICE), feed aggregation, activity streams, engine-mirror (Wiki.js). A selectable/composable coordination-layer axis feeding T1–T6. - UC-44–UC-82 → workplan task mapping (T1–T6 + T11–T16).
Contents
| Path | Role |
|---|---|
findings.md |
Family matrix, the fourteen spectra, the federation-model taxonomy, cross-cutting through-lines, UC→task fold-in, recommendations/decisions, escalated open questions |
Status
Synthesis v3 complete. No new use cases (consolidation only). Feeds SHARD-WP-0002:
T1–T6 federation-model taxonomy (selectable/composable federation); T11 reframed
around the fourteen spectra (incl. provenance granularity + expanded attachment modes +
external-API payload-format facet); T12 page-model breadth (prose + typed/computed records +
inline-embedded objects + typed-graph statements + non-Markdown assets +
query-defined + multi-placement/DAG identity); T13 history (DB-rows + partial-flat-file =
supplement; completeness metadata; journal-shaped coordination journal); T14 full
attachment taxonomy (git-IS-store / container / direct-DB / REST-file-hybrid +
source-of-truth per binding); T15 lossy + not-Markdown (graph/HTML); T16 (addressing
incl. statement GUID + opaque stable identity, identity≠placement, derived index,
graph query / federated SERVICE). UC coverage extended UC-34–UC-67 → UC-34–UC-82.
New through-lines (v3): federation is plural (the federation-model taxonomy); provenance
has a granularity spectrum (down to per-statement, Wikibase rank/references); git is both the
home store and the home journal (forge wikis make git the store, resolving the engine-
mirror write-race); the flat-file floor (Oddmuse/UseModWiki, Wikipedia's MediaWiki Phase I)
is the field's common root and the minimal capability profile; the page model must also carry
typed-graph statements and inline-embedded objects.
Carried from v2: CRDT changes the merge math; identity ≠ placement; metadata can be
computed; content opacity is per-item; the attach surface is not always the native store; the
block-graph-on-files sweet spot (Logseq id::).
Carried from v1: files-canonical/index-derived; fine-grained addressing is adoptable;
transclusion=clone=embed=reference is one primitive; structure/history federate iff in-text;
attach mode is per-binding; the platform can enforce no-silent-mutation.