Exploration Subgraph Taxonomy Root Page
This is the root page for a taxonomy of exploration relationships.
Role Taxonomy for Materials
A. Composition roles (composition-roles)
Roles where the material becomes part of a thing.
- A1. Ingredient / Component (ingredient-component)
- Used as an input that becomes part of the output.
- ex: corn in tortillas; corn in bourbon mash (via mashbill).
- A2. Primary ingredient / Major component
- Dominant share of composition (by mass/volume or rule-of-thumb).
- A3. Minor ingredient / Additive
- Small share; may affect taste, stability, texture.
- A4. Active ingredient
- The “functional” ingredient (pharma/chemical sense).
- A5. Filler / Bulking agent
- A6. Fortifier / Enrichment component
- A7. Co-product / Byproduct-as-component
- A byproduct that is deliberately incorporated elsewhere (e.g., DDGS used in feed).
B. Transformational roles
Roles where the material is consumed or transformed into something else (process-centric).
- B1. Feedstock
- Primary raw input for a conversion process.
- ex: corn as ethanol feedstock.
- B2. Fermentable substrate
- Specifically used because it can be fermented.
- B3. Reactant
- Chemically consumed in reaction.
- B4. Intermediate
- Produced/consumed between steps.
- B5. Precursor
- A required upstream input to make another input.
- B6. Catalyst
- Enables reaction without being consumed (or consumed slowly).
- B7. Solvent / Carrier
- Dissolves/transports other substances; may be recovered.
- B8. Processing aid
- Used to enable manufacture; not intended to remain in final product (or only traces).
C. Nutritional and biological roles
Roles where the material functions in a living system.
- C1. Human food
- C2. Animal feed
- C2a. Feed base / ration staple
- C2b. Feed supplement
- C3. Nutrient source
- Protein source, carbohydrate source, fat source, etc.
- C4. Growth medium / substrate
- Supports biological growth (cultures, agriculture inputs).
D. Energy roles
Roles where the material is used primarily for energy.
- D1. Fuel
- D2. Biofuel feedstock
- D3. Combustion input
- D4. Energy storage medium (rare for “materials” tables, but possible)
E. Structural and physical roles
Roles where the material provides structure, packaging, containment, or physical function.
- E1. Structural material
- E2. Packaging material
- E2a. Primary packaging (touches product)
- E2b. Secondary packaging
- E2c. Tertiary packaging / shipping
- E3. Container / Vessel
- E4. Coating / Liner / Barrier
- E5. Reinforcement / Binder
- E6. Insulator / Sealant
F. Operational roles
Roles tied to operations and handling rather than composition.
- F1. Consumable
- Used up during operations (cleaners, gloves, wipes).
- F2. Maintenance material
- F3. Sanitizer / Sterilant
- F4. Lubricant
- F5. Coolant
- F6. Spare / Replacement part material (if “material” includes parts)
G. Quality, safety, and compliance roles
Roles that matter because of rules, hazards, or quality constraints.
- G1. Regulated ingredient
- Subject to composition rules, labeling rules, or standards of identity.
- G2. Allergen / Sensitizer
- G3. Hazardous material
- Transport/storage/safety classification matters.
- G4. Contaminant / Impurity (risk)
- Not intended; tracked as risk factor.
- G5. Quality-critical input
- Drives variance in yield/defects/taste/strength.
- G6. Traceability-critical input
- Requires lot-level lineage.
- G7. Restricted / sanctioned input (trade/compliance)
H. Economic and market roles
Roles that help your TCW/TM discovery because they link to drivers that aren’t “in the recipe.”
- H1. Price-index driver
- Its price is used as an index or strongly drives costs.
- H2. Cost driver
- Material cost dominates unit economics.
- H3. Substitute / Alternative
- Has replacement relationship (e.g., corn vs. wheat in some contexts).
- H4. Complement
- Often rises/falls with another input (packaging + product, etc.).
- H5. Scarcity / bottleneck candidate
- Availability constrains throughput.
- H6. Seasonal supply driver
- H7. Policy-sensitive commodity
- Subsidies, tariffs, quotas, mandates influence it.
- H8. Speculation-sensitive commodity
- Futures/hedging behaviors create dynamics.
I. Environmental and externality roles
Roles that matter because they connect to weather/climate/regulation—often where “non-obvious” correlations live.
- I1. Water-intensive input
- I2. Land-use driver
- I3. Emissions driver
- I4. Waste stream driver
- I5. Recycling stream input
J. Knowledge and navigation roles (explicitly for your exploration layer)
These are “roles about roles” that help the system reason about how to explore.
- J1. Anchor material
- Well-connected; good stepping stone for graph expansion.
- J2. Bridge material
- Connects otherwise separate clusters (e.g., corn bridging agriculture ↔ energy ↔ spirits).
- J3. Leaf material
- Niche; low connectivity; likely to be endpoint.
- J4. Ambiguous label
- Name collision risk (e.g., “corn” vs “corn starch” vs “sweet corn”).