Create DATA_DICTIONARY.md

DATA_DICTIONARY.md

@@ -0,0 +1,38 @@
+# Data Dictionary
+
+## `printer_brand_research_matrix`
+
+| Field | Description |
+|---|---|
+| `brand` | Printer manufacturer or printer ecosystem. |
+| `priority_families` | Printer families prioritized for workflow research. |
+| `ink_workflow` | Ink technologies and production workflow context. |
+| `useful_compatibility_angles` | Topics suitable for compatibility-oriented education. |
+| `draft_content_opportunities` | Candidate educational content topics. |
+| `source_url` | Primary source URL. |
+
+## `competitor_product_research_matrix`
+
+| Field | Description |
+|---|---|
+| `brand` | Printable-media manufacturer or brand. |
+| `priority_product_family` | Product family used for research grouping. |
+| `product_examples` | Representative product names or series. |
+| `positioning_signals` | Source-backed positioning or application context. |
+| `ink_printer_compatibility` | Ink or printer workflow context requiring source review. |
+| `best_draft_angles` | Candidate educational comparison topics. |
+| `claim_risk` | Review priority: `High` or `Medium`. |
+| `source_url` | Primary source URL. |
+
+## `source_library`
+
+| Field | Description |
+|---|---|
+| `source_id` | Stable internal source identifier. |
+| `source_type` | Source classification such as official product or printer page. |
+| `brand_or_topic` | Brand or subject represented by the source. |
+| `content_cluster` | Knowledge-base content grouping. |
+| `source_url` | Public source URL. |
+| `date_checked` | Date the source was reviewed, formatted `YYYY-MM-DD`. |
+| `claim_category` | Intended research use of the source. |
+| `phase_1_use` | Internal content identifiers connected to the source. |