# ADAC-Genealogy 1.0 — Field Vocabulary Guide (Practitioner Edition)

**Audience**: Professional genealogists, lineage researchers, local historians, archival staff

This guide is written for domain experts. It keeps plain-language explanations up front and restores complete controlled-term listings in appendices.

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## A. Practical interpretation

- Use **record type** to describe what the source is.
- Use **source classification** to describe whether the source artifact is original or derivative.
- Use **evidence classification** and **information classification** to document proof reasoning.
- Use **legibility** and **damage types** to explain limits in extraction quality.

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## B. Complete vocabulary listings and definitions

### B.1 Record Type (`sourceCitation.recordType`) — open set

| Term | Definition |
|---|---|
| `birth` | Birth record or certificate. |
| `death` | Death record or certificate. |
| `marriage` | Marriage record, license, or certificate. |
| `census` | Census enumeration. |
| `immigration` | Immigration, naturalization, or passenger list. |
| `military` | Military service, draft, or pension record. |
| `church` | Church record (baptism, burial, confirmation, etc.). |
| `probate` | Probate, will, or estate record. |
| `land` | Land, property, or deed record. |
| `tax` | Tax record or assessment. |
| `newspaper` | Newspaper article, obituary, or notice. |
| `directory` | City directory, phone book, or business directory. |
| `slaveSchedule` | U.S. slave schedule (1850, 1860). |

### B.2 Source Classification (`sourceCitation.sourceClassification`) — closed set

| Term | Definition |
|---|---|
| `original` | Source created at the time of the event being researched. |
| `derivative` | Later copy, transcript, abstract, index, or compilation. |

### B.3 Evidence Classification (`evidence.classification`, `genealogy:person.evidenceClassification`) — closed set

| Term | Definition |
|---|---|
| `direct` | Source explicitly states the researched fact. |
| `indirect` | Inference/correlation with other sources is required. |
| `negative` | Absence of expected information is meaningful evidence. |

### B.4 Information Classification (`informationClassification`) — closed set

| Term | Definition |
|---|---|
| `primary` | Information recorded by eyewitness/participant. |
| `secondary` | Information recorded with second-hand knowledge. |
| `undetermined` | Informant knowledge status is unclear. |

### B.5 Legibility (`genealogy:condition.legibility`) — closed set

| Term | Definition |
|---|---|
| `clear` | Fully readable without difficulty. |
| `partial` | Partially readable with effort. |
| `poor` | Mostly unreadable but some text discernible. |
| `illegible` | Completely unreadable. |

### B.6 Damage Types (`genealogy:condition.damageTypes[]`) — open set

| Term | Definition |
|---|---|
| `torn` | Physical tear in the document. |
| `faded` | Ink or print has faded. |
| `waterDamage` | Water damage causing staining/warping. |
| `fireDamage` | Fire or heat damage. |
| `foxing` | Brown spots from oxidation. |
| `mold` | Mold or mildew damage. |
| `insectDamage` | Insect damage (bookworm holes, etc.). |
| `bleedThrough` | Ink bleeding through from reverse side. |
| `binding` | Text obscured by binding edge/gutter. |