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tegwick 574bb11db6 feat(example): add supply-chain-vsm composition demo (S3.5)

Demonstrates infospace composition: the Wealth of Nations infospace is
used as a discipline, applying Smith's economic framework as a lens to
analyse modern supply chain management concepts.

New example: examples/supply-chain-vsm/
- infospace.yaml binding WoN as discipline (../infospace-with-history)
- 3 source documents: coordination mechanisms, capital & inventory,
  market structure (~400 words each, original content)
- supply-chain-entity-schema-v1.0.md with WoN Concept required section
- won-mapping-schema-v1.0.md with Conceptual Continuity rating
- artifacts/won-reference/core-entities.md — 12 curated WoN entities
  for injection as discipline context
- 8 hand-crafted entity files demonstrating LLM output format
- 3 mapping files with full rationale and VSM inheritance chains
- Viable: YES (5/5 thresholds)

Key mappings demonstrated:
  Demand Signal          → Effectual Demand        (Strong, S2)
  Vendor-Managed Inventory → Division of Labour    (Strong, S1/S2)
  Just-in-Time Inventory → Circulating Capital     (Strong, S1/S3)
  Bullwhip Effect        → Natural Price           (Moderate, S2)
  Platform Intermediary  → Merchant Capital        (Strong, S2/S4)
  Monopsony Power        → Combination of Masters  (Strong, S3*)

Platform fix: entity_parser.py now recognises ## Supply Chain Domain
as a domain alias for ## Economic Domain, enabling composed infospaces
to use their own domain section name.

Tutorial §13 rewritten with real commands, real output, and the full
mapping table from the demo.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-02-23 00:08:51 +01:00

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Demand Signal

Definition

Information about consumer purchasing activity that propagates upstream through a supply chain to inform supplier replenishment and production decisions. A demand signal may be a point-of-sale data feed, a retailer's replenishment order, or a forecast. Signal quality — latency, accuracy, and granularity — determines how well upstream production can be synchronised with downstream consumption.

Source

Coordination Mechanisms in Modern Supply Chains, §Demand Signals and Information Flow

Supply Chain Domain

Coordination

VSM Assignment

S2 — The demand signal is the primary coordination variable of the supply chain, analogous to the price signal in a market. It tells each upstream node what the downstream node requires, enabling synchronised response without central direction.

WoN Concept

Effectual Demand — Smith's effectual demand — the demand of those willing and able to pay — is the signal that calls productive resources into action. The modern demand signal is effectual demand made explicit and machine-readable: instead of inferring demand from price movements, modern supply chains transmit demand data directly. Both serve the same coordination function (telling producers how much to produce), but where Smith's effectual demand works through price as a lagged, aggregated signal, the modern demand signal aims for real-time, granular transmission.

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