{
  "contract": "aesthetary.record/1.0",
  "record_spec": "1.1.0",
  "semantics": {
    "vocabulary": "aesthetary.public-evidence/1.0",
    "definitions": "vocabulary.json"
  },
  "slug": "engineering-drawing",
  "name": "Engineering Drawing",
  "identity": {
    "definition": {
      "state": "resolved",
      "text": "Engineering drawing is a type of technical drawing governed by standards (ISO 128 series, ASME Y14). It works mainly through multiple views, projected by first- or third-angle methods, line widths in a fixed 4:2:1 ratio, lettering, and a title block; part references in assembly drawings and exploded views in assembly and maintenance manuals belong to its assembly documentation. The isometric emphasis and the single orange accent are Aesthetary's reading."
    },
    "scope": {
      "state": "resolved",
      "text": "Engineering drawing is a standards-governed technical notation. Aesthetary's register borrows its meaningful line types, orthographic discipline and part-numbered exploded views; the isometric emphasis and single orange accent are our reading.",
      "ruling": "D0-1"
    },
    "aliases": [
      "CAD",
      "exploded view",
      "parts diagram",
      "tolerance"
    ],
    "layer_verdict": {
      "state": "ruled",
      "value": "coherent_but_narrower",
      "ruling": "D0-1"
    }
  },
  "native_medium": {
    "state": "resolved",
    "value": [
      "print",
      "software"
    ],
    "evidence": {
      "quote": "For centuries, until the 1970s, all engineering drawing was done manually by using pencil and pen on paper or other substrate (e.g., vellum, mylar). … Today most engineering drawing is done with CAD, but pencil and paper have not entirely disappeared.",
      "field": "kcc.json#engineering-drawing/medium (claim kcc:medium)"
    },
    "ruling": "Knowledge Completion Campaign (founder instruction, 2026-09-29)"
  },
  "research": {
    "line": "partly_sourced",
    "text": "Partly sourced",
    "sentence": "14 sources attached."
  },
  "areas": [
    {
      "area": "layout",
      "state": "resolved",
      "canon": "specified",
      "importance": "unknown",
      "posture_basis": "synthesis",
      "label": {
        "text": "Specified"
      }
    },
    {
      "area": "typography",
      "state": "resolved",
      "canon": "specified",
      "importance": "unknown",
      "posture_basis": "synthesis",
      "label": {
        "text": "Specified"
      }
    },
    {
      "area": "color",
      "state": "resolved",
      "canon": "specified",
      "importance": "unknown",
      "posture_basis": "synthesis",
      "label": {
        "text": "Specified"
      }
    },
    {
      "area": "imagery",
      "state": "resolved",
      "canon": "specified",
      "importance": "unknown",
      "posture_basis": "synthesis",
      "label": {
        "text": "Specified"
      }
    },
    {
      "area": "surface",
      "state": "resolved",
      "canon": "open_by_finding",
      "importance": "unknown",
      "posture_basis": null,
      "label": {
        "text": "Left open"
      }
    },
    {
      "area": "interface",
      "state": "resolved",
      "canon": "specified",
      "importance": "unknown",
      "posture_basis": null,
      "label": {
        "text": "Specified"
      }
    },
    {
      "area": "motion",
      "state": "resolved",
      "canon": "specified",
      "importance": "unknown",
      "posture_basis": "synthesis",
      "label": {
        "text": "Specified"
      }
    },
    {
      "area": "motif",
      "state": "resolved",
      "canon": "specified",
      "importance": "unknown",
      "posture_basis": null,
      "label": {
        "text": "Specified"
      }
    },
    {
      "area": "technique",
      "state": "resolved",
      "canon": "not_established",
      "importance": "unknown",
      "posture_basis": null,
      "label": {
        "text": "Not researched yet"
      }
    },
    {
      "area": "form",
      "state": "resolved",
      "canon": "not_applicable",
      "importance": "unknown",
      "posture_basis": null,
      "label": {
        "text": "Does not apply"
      }
    },
    {
      "area": "hierarchy",
      "state": "resolved",
      "canon": "specified",
      "importance": "unknown",
      "posture_basis": "synthesis",
      "label": {
        "text": "Specified"
      }
    },
    {
      "area": "density",
      "state": "resolved",
      "canon": "not_canonically_specified",
      "importance": "unknown",
      "posture_basis": "synthesis",
      "label": {
        "text": "Not specified by the source"
      }
    }
  ],
  "claims": [
    {
      "id": "layout-3",
      "text": "Composition: isometric, exploded along axes.",
      "role": "rule",
      "area": "layout",
      "basis": "inherited",
      "support": {
        "state": "inherited",
        "for": [],
        "against": [
          "mass-01:engineering-drawing:WP_ENGDRAWING"
        ],
        "contested": true
      },
      "label": {
        "kind": "catalogue",
        "mark": "disputed",
        "text": "From our catalogue entry · disputed"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "hierarchy-13",
      "text": "Hierarchy: part number + orange accent.",
      "role": "rule",
      "area": "hierarchy",
      "basis": "inherited",
      "support": {
        "state": "inherited",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "catalogue",
        "text": "From our catalogue entry"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "color-5",
      "text": "The single orange accent is a count constraint. A second accent breaks the \"marks what matters\" logic.",
      "role": "rule",
      "area": "color",
      "basis": "inherited",
      "support": {
        "state": "inherited",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "catalogue",
        "text": "From our catalogue entry"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "imagery-7",
      "text": "Imagery: isometric technical illustration.",
      "role": "rule",
      "area": "imagery",
      "basis": "inherited",
      "support": {
        "state": "inherited",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "catalogue",
        "text": "From our catalogue entry"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "motion-14",
      "text": "CURATORIAL from intent, and unusually well-founded: the register's own logic is assembly and disassembly, so parts separating and returning along their construction axes is native motion rather than imported web convention. One of the strongest motion cases in the corpus.",
      "role": "rule",
      "area": "motion",
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "ed-r1",
      "text": "Line type and weight together encode meaning: visible edges thick and continuous, hidden edges thin and dashed, centrelines thin chain. A line whose type carries no meaning is decoration and does not belong.",
      "role": "rule",
      "area": "imagery",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "mass-01:engineering-drawing:WP_ENGDRAWING"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": "D0-3 C4b D5"
    },
    {
      "id": "failure-1",
      "text": "No cyanotype ground.",
      "role": "negative",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "failure-3",
      "text": "No unnumbered parts.",
      "role": "negative",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "failure-4",
      "text": "No second accent colour.",
      "role": "negative",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "failure-5",
      "text": "No perspective.",
      "role": "negative",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "failure-7",
      "text": "Not open: blue ground.",
      "role": "negative",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "intent-cost",
      "text": "Costs accepted: Dimensional precision; Reproduction economy; Compactness",
      "role": "argument",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "v1-era",
      "text": "Era: contemporary",
      "role": "context",
      "area": null,
      "basis": "inherited",
      "support": {
        "state": "inherited",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "catalogue",
        "text": "From our catalogue entry"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "v1-mood",
      "text": "Mood: technical",
      "role": "context",
      "area": null,
      "basis": "inherited",
      "support": {
        "state": "inherited",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "catalogue",
        "text": "From our catalogue entry"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "v1-cross-library",
      "text": "Cross-library: Imagery: isometric technical illustration",
      "role": "context",
      "area": null,
      "basis": "inherited",
      "support": {
        "state": "inherited",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "catalogue",
        "text": "From our catalogue entry"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "v1-applications",
      "text": "Common applications: Hardware, manufacturing, automotive",
      "role": "context",
      "area": null,
      "basis": "inherited",
      "support": {
        "state": "inherited",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "catalogue",
        "text": "From our catalogue entry"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "sector-registers",
      "text": "Sectors: Hardware, manufacturing, automotive",
      "role": "context",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": "D0-3 C3 sector"
    },
    {
      "id": "freedom-typography",
      "text": "Declared freedom: typography.",
      "role": "context",
      "area": "typography",
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "declared-freedom",
      "text": "Declared freedom: explosion distance; density of part numbers.",
      "role": "context",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:typography-1",
      "text": "Lettering practice is itself standardised (ASME Y14.2; ISO 3098), with nominal size defined by capital height.",
      "role": "rule",
      "area": "typography",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S10",
          "kcc-engineering-drawing-S7"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:typography-2",
      "text": "Working-drawing lettering is a rapid single-stroke letter, vertical or inclined (1911 manual), with titles in single-stroke capitals; Wikipedia describes a Gothic sans-serif formed by short strokes, with lower case rare on machine drawings.",
      "role": "rule",
      "area": "typography",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S11",
          "kcc-engineering-drawing-S1"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "French 1911 manual; Wikipedia for current practice"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:typography-3",
      "text": "ISO 3098 permits vertical or right-inclined (75 degree) lettering; a 1911 manual adds that one title must never mix the two.",
      "role": "rule",
      "area": "typography",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S7",
          "kcc-engineering-drawing-S11"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:typography-4",
      "text": "Lettering must survive reproduction (diazo, microfilm, telefax).",
      "role": "rule",
      "area": "typography",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S7"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "ISO 3098-0"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:typography-5",
      "text": "A 1911 manual condemned ruled geometric or block letters; ISO 3098 (1997) lists templates and manual lettering instruments among lettering techniques.",
      "role": "negative",
      "area": "typography",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S11",
          "kcc-engineering-drawing-S7"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "1911 versus 1997"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:typography-6",
      "text": "Wikipedia says many drawings have switched to Arial.",
      "role": "context",
      "area": "typography",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S1"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "encyclopedic claim, unconfirmed elsewhere"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:motif-1",
      "text": "Part references are preferably numerals only, either encircled in same-diameter narrow-line circles or set in larger characters (e.g. twice dimension height), joined by leader lines that must not intersect.",
      "role": "rule",
      "area": "motif",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S6"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "ISO 6433"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:motif-2",
      "text": "Part references sit outside the part outlines and are aligned in rows or columns.",
      "role": "rule",
      "area": "motif",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S6"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:motif-3",
      "text": "Section lines are commonly called cross-hatching.",
      "role": "rule",
      "area": "motif",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S1"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:motif-4",
      "text": "The sheet carries a grid reference border and centring marks for reproduction.",
      "role": "rule",
      "area": "motif",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S8"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "ISO 5457"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:surface-1",
      "text": "Until the 1970s all engineering drawing was done manually in pencil and pen on paper or other substrates such as vellum and mylar; today most is done with CAD.",
      "role": "context",
      "area": "surface",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S1"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:surface-2",
      "text": "Tracing cloth was a starched, calendered cotton or linen, glossy on one side; draftsmen preferred the dull side because it took pencil.",
      "role": "context",
      "area": "surface",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S11",
          "kcc-engineering-drawing-S13"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "19th to mid-20th century"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:surface-3",
      "text": "Drafting cloth gave way to acetate and polyester film by the mid-20th century.",
      "role": "context",
      "area": "surface",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S13"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:motion-1",
      "text": "The exploded view shows the order of assembly or disassembly statically, by separating parts.",
      "role": "context",
      "area": "motion",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S2",
          "kcc-engineering-drawing-S14"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "static drawings, including patent practice"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:motion-2",
      "text": "SolidWorks can animate exploded views, and its Reciprocate option plays explosion and collapse forward and back.",
      "role": "context",
      "area": "motion",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S12"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "contemporary CAD (SolidWorks) only"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:form-1",
      "text": "The drawing sits on flat sheets of standard size with a frame and filing margin, and represents 3D objects through several 2D views.",
      "role": "context",
      "area": "form",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S8",
          "kcc-engineering-drawing-S1"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:interface-1",
      "text": "Every drawing has a title block, placed bottom right on A0 to A3 sheets.",
      "role": "rule",
      "area": "interface",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S1",
          "kcc-engineering-drawing-S8",
          "kcc-engineering-drawing-S11"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "ISO 5457, with 1911 practice"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:interface-2",
      "text": "The drawing space is bounded by a 0.7 mm continuous frame, with a margin that can be used for filing.",
      "role": "rule",
      "area": "interface",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S8"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "ISO 5457"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:interface-3",
      "text": "ISO 7200 specifies the data fields used in title blocks, and advises avoiding the letters I and O because they are confused with 1 and 0.",
      "role": "rule",
      "area": "interface",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S9"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "ISO 7200"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:interface-4",
      "text": "Manual practice laid out a bordered sheet and blocked out the title space before drawing, and repeated the filing number upside down in a corner for drawer retrieval.",
      "role": "context",
      "area": "interface",
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S11"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "scope": {
        "practice": "French 1911"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:definition",
      "text": "Engineering drawing is a type of technical drawing governed by standards (ISO 128 series, ASME Y14). It works mainly through multiple views, projected by first- or third-angle methods, line widths in a fixed 4:2:1 ratio, lettering, and a title block; part references in assembly drawings and exploded views in assembly and maintenance manuals belong to its assembly documentation. The isometric emphasis and the single orange accent are Aesthetary's reading.",
      "role": "definition",
      "area": null,
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S1",
          "kcc-engineering-drawing-S5",
          "kcc-engineering-drawing-S4",
          "kcc-engineering-drawing-S10",
          "kcc-engineering-drawing-S8",
          "kcc-engineering-drawing-S6",
          "kcc-engineering-drawing-S2"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:medium",
      "text": "Native medium: print, software.",
      "role": "context",
      "area": null,
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S1"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "kcc:boundary-1",
      "text": "vs blueprint: Engineering drawings are made to suit several copying processes (diazo, microfilm, telefax) and are now printed black or multicolour on white, so blueprint is one reproduction route rather than the parent; reading the 'specialises:blueprint' and 'catalogue_parent:Blueprint' links as inverted is Aesthetary's reading.",
      "role": "boundary",
      "area": null,
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S1",
          "kcc-engineering-drawing-S7"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "idr:boundary-blueprint",
      "text": "Blueprint is not Engineering Drawing's parent, nor its child. A blueprint is a reproduction of an engineering drawing made by a contact print process, and engineering drawings are made to suit several copying processes (diazo, microfilm, telefax). The two share the drawing's conventions (projected views, title block, dimensions); Engineering Drawing is the drawing, Blueprint the cyanotype print of it. Against Isometric (a projection Module): a static isometric with no explosion axes is the Module; the exploded view is assembly documentation.",
      "role": "boundary",
      "area": null,
      "basis": "documentary",
      "support": {
        "state": "cited",
        "for": [
          "kcc-engineering-drawing-S7"
        ],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "documented",
        "mark": "attached",
        "text": "Documented · Source attached"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "idr:gestalt",
      "text": "Multiple views projected by a declared method, line types in a fixed width series, parts keyed by reference numbers, and a title block; in assembly and maintenance documentation, exploded views pull parts apart along shared axes. The isometric emphasis and the single orange accent are Aesthetary's reading. Blueprint is one reproduction of such a drawing, not its parent.",
      "role": "diagnostic",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [
        "kcc:definition",
        "ed-r1",
        "ed-r2"
      ],
      "ruling": null
    },
    {
      "id": "idr:intent-negation",
      "text": "Refuses any part shown without an identifier.",
      "role": "argument",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [],
      "ruling": null
    },
    {
      "id": "idr:v1-distinguishing",
      "text": "The drawing itself, where Blueprint is one cyanotype reproduction of it",
      "role": "diagnostic",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [
        "idr:boundary-blueprint"
      ],
      "ruling": null
    },
    {
      "id": "dcc:intent",
      "text": "A drawing is read by someone who was not there when it was made. Projected views, coded line widths, numbered parts and a title block let that reader recover the object exactly; where the drawing documents an assembly, pulling the parts apart along their axes shows relationship and order as well.",
      "role": "argument",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [
        "kcc:definition",
        "kcc:motif-1",
        "kcc:motion-1"
      ],
      "ruling": null
    },
    {
      "id": "dcc:intent-audience",
      "text": "Audience: A reader who knows the conventions (views, line types, part references, title block), whether making the object, assembling it or repairing it.",
      "role": "argument",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [
        "kcc:definition"
      ],
      "ruling": null
    },
    {
      "id": "dcc:failure-9",
      "text": "Not open: a line width outside the drawing's fixed series.",
      "role": "negative",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [
        "kcc:definition"
      ],
      "ruling": null
    },
    {
      "id": "dcc:ed-r2",
      "text": "Views are orthographic and projected consistently. The standards admit first-angle and third-angle projection alike, and the sheet says which it uses; mixing the two on one sheet is an error, not a style.",
      "role": "rule",
      "area": null,
      "basis": "synthesis",
      "support": {
        "state": "none",
        "for": [],
        "against": [],
        "contested": false
      },
      "label": {
        "kind": "reading",
        "text": "Our reading"
      },
      "derives_from": [
        "kcc:definition"
      ],
      "ruling": null
    }
  ],
  "web_translations": [],
  "standard_practice": [],
  "sources": [
    {
      "id": "mass-01:engineering-drawing:WP_ENGDRAWING",
      "kind": "source",
      "title": "Engineering drawing",
      "url": "https://en.wikipedia.org/wiki/Engineering_drawing",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S1",
      "kind": "source",
      "title": "Engineering drawing",
      "url": "https://en.wikipedia.org/wiki/Engineering_drawing",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S10",
      "kind": "source",
      "title": "Y14.2 - Line Conventions and Lettering",
      "url": "https://www.asme.org/codes-standards/find-codes-standards/y14-2-line-conventions-lettering",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S11",
      "kind": "source",
      "title": "A manual of engineering drawing for students and draftsmen",
      "url": "https://archive.org/stream/manualofengineer00frenrich/manualofengineer00frenrich_djvu.txt",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S12",
      "kind": "source",
      "title": "SolidWorks Exploded View",
      "url": "https://medesign.seas.upenn.edu/index.php/Software/SolidWorksExplodedView",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S13",
      "kind": "source",
      "title": "Preservation Self-Assessment Program - Architectural Papers (Blueprint)",
      "url": "https://psap.library.illinois.edu/advanced-help/paper-unbound-architectural-blueprint",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S14",
      "kind": "source",
      "title": "MPEP 608 Disclosure (37 CFR 1.84 Standards for drawings)",
      "url": "https://www.uspto.gov/web/offices/pac/mpep/s608.html",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S2",
      "kind": "source",
      "title": "Exploded-view drawing",
      "url": "https://en.wikipedia.org/wiki/Exploded-view_drawing",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S4",
      "kind": "source",
      "title": "ISO 128-2:2022 Technical product documentation - General principles of representation - Part 2: Basic conventions for lines (sample)",
      "url": "https://cdn.standards.iteh.ai/samples/83355/10bb39d36fc34caeb80ecd25347ddb0c/ISO-128-2-2022.pdf",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S5",
      "kind": "source",
      "title": "ISO 128-3:2022 Technical product documentation - Part 3: Views, sections and cuts (sample)",
      "url": "https://cdn.standards.iteh.ai/samples/83356/d1819f3aabb74441890b2302a24a4cb6/ISO-128-3-2022.pdf",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S6",
      "kind": "source",
      "title": "ISO 6433:2012 Technical product documentation - Part references (sample)",
      "url": "https://cdn.standards.iteh.ai/samples/51527/d4eaa720fb0448bea2952817ce24d508/ISO-6433-2012.pdf",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S7",
      "kind": "source",
      "title": "ISO 3098-0:1997 Technical product documentation - Lettering - Part 0: General requirements (sample)",
      "url": "https://cdn.standards.iteh.ai/samples/24792/1811286881f24ea49763a66a747029c8/ISO-3098-0-1997.pdf",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S8",
      "kind": "source",
      "title": "ISO 5457:1999 Technical product documentation - Sizes and layout of drawing sheets (sample)",
      "url": "https://cdn.standards.iteh.ai/samples/29017/e46c0ec5d98f470aab82dae76889f229/ISO-5457-1999.pdf",
      "status": "verified",
      "retrieval": "retrieved"
    },
    {
      "id": "kcc-engineering-drawing-S9",
      "kind": "source",
      "title": "ISO 7200:2004 Technical product documentation - Data fields in title blocks and document headers (sample)",
      "url": "https://cdn.standards.iteh.ai/samples/35446/d3b0887cb4fa47f49f8718807d3b8903/ISO-7200-2004.pdf",
      "status": "verified",
      "retrieval": "retrieved"
    }
  ],
  "relations": [
    {
      "slug": "blueprint",
      "kind": "confused_with",
      "status": "proposed"
    }
  ],
  "open": [
    {
      "kind": "missing_research",
      "question": "Is there a colour convention in engineering drawing that could ground an accent colour?"
    },
    {
      "kind": "missing_research",
      "question": "review-queue-27 disposition: should Engineering Drawing be a direction on Blueprint?"
    }
  ],
  "aesthetary_build": {
    "note": "Values Aesthetary built with. Not claims about the Aesthetic.",
    "measured": {
      "note": "Read from the page's own stylesheet at build time. Values Aesthetary built with, not claims about the Aesthetic.",
      "slug": "engineering-drawing",
      "stylesheet": "engineering-drawing.css",
      "bytes": 11658,
      "colours": [
        "#E8641B",
        "#B8480C",
        "#22262B",
        "#5C636B",
        "#A9B0B8",
        "#FFFFFF",
        "#F4F6F8",
        "#DDE2E7"
      ],
      "radii": [
        "50%"
      ],
      "fontSizes": [
        "13px",
        "14px",
        "15px"
      ],
      "faces": [
        "PlexSansX",
        "PlexMonoX"
      ],
      "tokens": [
        {
          "name": "--ed-ink",
          "value": "#22262B"
        },
        {
          "name": "--ed-g1",
          "value": "#5C636B"
        },
        {
          "name": "--ed-g2",
          "value": "#A9B0B8"
        },
        {
          "name": "--ed-or",
          "value": "#E8641B"
        },
        {
          "name": "--ed-or-t",
          "value": "#b8480c"
        },
        {
          "name": "--ed-w",
          "value": "#FFFFFF"
        },
        {
          "name": "--ed-p1",
          "value": "#F4F6F8"
        },
        {
          "name": "--ed-p2",
          "value": "#DDE2E7"
        },
        {
          "name": "--ed-sans",
          "value": "\"PlexSansX\", \"IBM Plex Sans\", \"Helvetica Neue\", Arial, sans-serif"
        },
        {
          "name": "--ed-mono",
          "value": "\"PlexMonoX\", \"IBM Plex Mono\", ui-monospace, Menlo, monospace"
        },
        {
          "name": "--sec",
          "value": ":after { content: \"\""
        }
      ],
      "animates": false,
      "absent": [
        "no box-shadow anywhere",
        "no text-shadow anywhere",
        "nothing animates"
      ]
    },
    "design_grammar": {
      "note": "Aesthetary's translation of this record into web primitives. Every value carries a basis: \"record\" is a rule the record holds (cites names it), \"translation\" is our choice derived from the cited rules (because says how), \"not_recorded\" means the record is silent (guidance says what to do). A \"record\" value restates a claim the record holds; its standing is that claim's own kind in the record (a requirement, period practice, modern practice, or our interpretation), which the cited rule states. \"record\" does not by itself make a value a property of the language.",
      "slug": "engineering-drawing",
      "version": "2026-09-29",
      "summary": "A starting grammar for a website in Engineering Drawing: a framed white sheet with a title block, ink in one fixed series of line widths, every part keyed by a number, and one orange accent, which is our reading.",
      "color": {
        "roles": [
          {
            "role": "sheet",
            "value": "#FFFFFF",
            "use": "The drawing sheet: the page ground.",
            "basis": "translation",
            "cites": [
              "claim:kcc:boundary-1"
            ]
          },
          {
            "role": "ink",
            "value": "#22262B",
            "contrast": "15.2:1",
            "use": "Every line and all lettering.",
            "basis": "translation",
            "cites": [
              "claim:kcc:boundary-1"
            ]
          },
          {
            "role": "ink-2",
            "value": "#5C636B",
            "contrast": "6.1:1",
            "use": "Secondary lettering, centrelines, field names.",
            "basis": "translation",
            "cites": [
              "token_rule:ed-r1"
            ]
          },
          {
            "role": "rule",
            "value": "#A9B0B8",
            "use": "Narrow rules in tables and the sheet trim. Never text.",
            "basis": "translation",
            "cites": [
              "token_rule:ed-r1"
            ]
          },
          {
            "role": "accent",
            "value": "#E8641B",
            "contrast": "3.3:1 (fill and line only)",
            "use": "The one accent: what matters, once.",
            "basis": "record",
            "cites": [
              "token_rule:color-5"
            ]
          },
          {
            "role": "accent-text",
            "value": "#B8480C",
            "contrast": "5.3:1",
            "use": "The accent when it has to be lettering.",
            "basis": "translation",
            "cites": [
              "token_rule:color-5"
            ]
          }
        ],
        "alternates": [],
        "rules": [
          {
            "rule": "Use one accent colour and only one; a second accent breaks its \"marks what matters\" logic.",
            "basis": "record",
            "cites": [
              "token_rule:color-5"
            ]
          },
          {
            "rule": "Draw in dark ink on a white sheet.",
            "basis": "translation",
            "cites": [
              "claim:kcc:boundary-1"
            ],
            "because": "Engineering drawings are now printed black or multicolour on white; a cyanotype ground is Blueprint, one reproduction of the drawing."
          },
          {
            "rule": "Letter the accent in the darker #B8480C; keep #E8641B for fills and lines.",
            "basis": "translation",
            "cites": [
              "token_rule:color-5"
            ],
            "because": "The orange fails text contrast on white (3.3:1); the one accent stays one hue."
          }
        ]
      },
      "typography": {
        "family": {
          "stack": "\"PlexSansX\", \"IBM Plex Sans\", \"Helvetica Neue\", Arial, sans-serif",
          "class": "a plain sans (the record declares typography free; IBM Plex is the room's choice)"
        },
        "tokens": {
          "font-mono": "\"PlexMonoX\", \"IBM Plex Mono\", ui-monospace, Menlo, monospace",
          "incline": "-15deg"
        },
        "roles": [
          {
            "role": "title",
            "size": "clamp(2.375rem, 4.4vw, 4.25rem)",
            "weight": 300,
            "lineHeight": "1",
            "case": null,
            "tracking": null,
            "measure": null,
            "use": "The drawing's title, once."
          },
          {
            "role": "heading",
            "size": "clamp(1.375rem, 2.6vw, 1.875rem)",
            "weight": 500,
            "lineHeight": "1.2",
            "case": null,
            "tracking": null,
            "measure": null,
            "use": "Section titles."
          },
          {
            "role": "body",
            "size": "1rem",
            "weight": 400,
            "lineHeight": "1.6",
            "case": null,
            "tracking": null,
            "measure": "68ch",
            "use": "Notes and running text."
          },
          {
            "role": "label",
            "size": "0.75rem",
            "weight": 500,
            "lineHeight": "1.4",
            "case": "uppercase",
            "tracking": null,
            "measure": null,
            "setting": "mono",
            "use": "Field names, part numbers, grid references."
          }
        ],
        "rules": [
          {
            "rule": "Letter in a plain sans formed by single strokes; titles in capitals, lower case rare on the drawing itself.",
            "basis": "record",
            "cites": [
              "claim:kcc:typography-2"
            ]
          },
          {
            "rule": "Set lettering vertical or inclined at 75 degrees, and never mix the two in one title.",
            "basis": "record",
            "cites": [
              "claim:kcc:typography-3"
            ]
          },
          {
            "rule": "Size type by its capital height and keep to few sizes.",
            "basis": "translation",
            "cites": [
              "claim:kcc:typography-1"
            ],
            "because": "The standard defines nominal lettering size by capital height."
          },
          {
            "rule": "Keep lettering fit to copy: no hairline strokes, no text in the pale rule grey.",
            "basis": "translation",
            "cites": [
              "claim:kcc:typography-4"
            ],
            "because": "Lettering must survive reproduction (diazo, microfilm, telefax); a screenshot or a print is today's copy."
          },
          {
            "rule": "Any plain sans will do; IBM Plex is this room's choice, not the language's.",
            "basis": "translation",
            "cites": [
              "claim:freedom-typography",
              "claim:kcc:typography-6"
            ],
            "because": "The record declares typography a freedom, and many drawings have switched to Arial."
          }
        ]
      },
      "gridLayout": {
        "summary": "The page is a drawing sheet, not a column grid: a continuous frame with a wider filing margin on the left, grid references and centring marks on the border, the object shown in several views, and the title block bottom right.",
        "tokens": {
          "frame": "2px",
          "filing-margin": "clamp(1.25rem, 4vw, 2.5rem)",
          "sheet-margin": "clamp(0.75rem, 2vw, 1.25rem)"
        },
        "rules": [
          {
            "rule": "Bound the drawing space with a continuous frame, with a margin that can be used for filing.",
            "basis": "record",
            "cites": [
              "claim:kcc:interface-2"
            ]
          },
          {
            "rule": "Put the title block bottom right.",
            "basis": "record",
            "cites": [
              "claim:kcc:interface-1"
            ]
          },
          {
            "rule": "Carry a grid reference border and centring marks on the sheet.",
            "basis": "record",
            "cites": [
              "claim:kcc:motif-4"
            ]
          },
          {
            "rule": "Show the object in several views projected by one declared method, first angle or third; mixing them on one sheet is an error.",
            "basis": "record",
            "cites": [
              "claim:kcc:definition",
              "claim:dcc:ed-r2"
            ]
          },
          {
            "rule": "On a phone the title block closes the page rather than sitting in a corner.",
            "basis": "translation",
            "cites": [
              "claim:kcc:interface-1"
            ],
            "because": "The record places it bottom right on A0 to A3 sheets; a phone is not a sheet, so the corner becomes the end."
          }
        ]
      },
      "shapeGeometry": {
        "tokens": {
          "line-extra": "4px",
          "line-wide": "2px",
          "line-narrow": "1px",
          "radius": "0",
          "balloon": "26px"
        },
        "rules": [
          {
            "rule": "Give each line a meaning by type and width: visible edges wide and continuous, hidden edges narrow and dashed, centrelines narrow chain.",
            "basis": "record",
            "cites": [
              "token_rule:ed-r1"
            ]
          },
          {
            "rule": "Take every width from one series in the ratio 4:2:1 (4px, 2px, 1px here); there is no hairline.",
            "basis": "translation",
            "cites": [
              "claim:kcc:definition"
            ],
            "because": "Line widths in a fixed 4:2:1 ratio are part of the record's definition; screen pixels keep the ratio."
          },
          {
            "rule": "Keep corners square; the one round form is the part reference.",
            "basis": "translation",
            "cites": [
              "claim:kcc:motif-1"
            ],
            "because": "Part references are encircled numerals; the record names no other rounded form."
          }
        ]
      },
      "imagery": {
        "rules": [
          {
            "rule": "In assembly documentation, separate the parts to show the order of assembly or disassembly.",
            "basis": "record",
            "cites": [
              "claim:kcc:motion-1"
            ]
          },
          {
            "rule": "Draw the exploded view in isometric, parts pulled apart along a shared axis.",
            "basis": "translation",
            "cites": [
              "token_rule:imagery-7",
              "token_rule:layout-3"
            ],
            "because": "Isometric is the record's emphasis, and its reading, carried by its imagery and composition rules."
          },
          {
            "rule": "Do not draw in perspective.",
            "basis": "record",
            "cites": [
              "claim:failure-5"
            ]
          },
          {
            "rule": "The sources do not specify photography.",
            "basis": "not_recorded",
            "cites": [],
            "guidance": "Show objects as drawings. If a photograph is needed, keep it outside the sheet and do not call it part of the language.",
            "silence": "source"
          }
        ]
      },
      "components": {
        "button": {
          "name": "Button",
          "becomes": "A drawn box: a wide ink line on the white sheet, the label lettered in mono; pressed, it fills with ink.",
          "anatomy": [
            "2px ink outline (the wide line)",
            "label in the mono face",
            "square corners",
            "no fill until interaction"
          ],
          "tokens": {
            "border": "2px solid #22262B",
            "background": "#FFFFFF",
            "hover": "#22262B fill, white label",
            "radius": "0",
            "minHeight": "44px"
          },
          "states": {
            "default": "White field, wide ink outline.",
            "hover": "Ink fill, white label. The swap is instant.",
            "focus": "2px ink outline 3px outside the box.",
            "active": "Ink fill.",
            "disabled": "Narrow (1px) dashed outline, the hidden-edge line; label in the secondary grey."
          },
          "accessibility": [
            "Ink on white at 15.2:1; the inverted state keeps the same pair.",
            "At least 44px tall.",
            "Disabled is said in words as well as by the dashed line."
          ],
          "values": [
            {
              "rule": "Draw the button as an outline in the wide line, square, with a mono label.",
              "basis": "translation",
              "cites": [
                "token_rule:ed-r1",
                "claim:kcc:definition"
              ],
              "because": "Line type and width carry meaning; a control is a visible edge, drawn wide and continuous."
            },
            {
              "rule": "Show a disabled control with the narrow dashed line.",
              "basis": "translation",
              "cites": [
                "token_rule:ed-r1"
              ],
              "because": "Hidden edges are thin and dashed; an unavailable control is the one that is not there to use."
            }
          ]
        },
        "card": {
          "name": "Card",
          "becomes": "A part on the sheet: a framed box keyed by an encircled reference numeral that sits outside it, on a leader.",
          "anatomy": [
            "2px ink frame",
            "encircled numeral outside the frame, joined by a 1px leader",
            "title in the sans at 500",
            "one line of text"
          ],
          "tokens": {
            "border": "2px solid #22262B",
            "balloon": "26px circle, 1px line",
            "leader": "1px solid #22262B",
            "background": "#FFFFFF"
          },
          "states": {
            "default": "Ink frame, reference numeral in the margin.",
            "hover": "Title underlined, 2px.",
            "focus": "2px outline outside the frame.",
            "current": "The numeral's circle in the one orange."
          },
          "accessibility": [
            "The whole card is one link; the numeral is part of its name.",
            "Order in the DOM follows the numbers."
          ],
          "values": [
            {
              "rule": "Key every part with a reference numeral, encircled in a narrow line, on a leader that crosses no other leader.",
              "basis": "record",
              "cites": [
                "claim:kcc:motif-1"
              ]
            },
            {
              "rule": "Set the references outside the part outlines, aligned in a row or column.",
              "basis": "record",
              "cites": [
                "claim:kcc:motif-2"
              ]
            },
            {
              "rule": "Give every card a number; an unnumbered card is an unidentified part.",
              "basis": "translation",
              "cites": [
                "claim:idr:intent-negation"
              ],
              "because": "The record refuses any part shown without an identifier."
            }
          ]
        },
        "input": {
          "name": "Input",
          "becomes": "A title-block cell: a ruled box with its field name small above, in mono capitals, and the entry beneath.",
          "anatomy": [
            "1px rule around the cell",
            "field name in mono capitals, 12px",
            "entry in the sans, 16px",
            "error as a lettered line below"
          ],
          "tokens": {
            "border": "1px solid #22262B",
            "label": "12px mono, capitals",
            "height": "3rem",
            "radius": "0"
          },
          "states": {
            "default": "Narrow rule, white field.",
            "focus": "The rule widens to 2px, and an outline sits outside it.",
            "error": "Message below in the accent text colour (5.3:1), beginning \"Error:\".",
            "disabled": "Dashed narrow rule."
          },
          "accessibility": [
            "The field name is a real label above the field.",
            "Errors are words, not colour alone."
          ],
          "values": [
            {
              "rule": "Build fields like title-block cells: the field name above, small, the entry below.",
              "basis": "translation",
              "cites": [
                "claim:kcc:interface-3"
              ],
              "because": "ISO 7200 defines the named data fields a title block holds; a form is a set of named fields."
            },
            {
              "rule": "Leave I and O out of any identifier the page generates.",
              "basis": "translation",
              "cites": [
                "claim:kcc:interface-3"
              ],
              "because": "ISO 7200 advises avoiding them because they are confused with 1 and 0."
            }
          ]
        },
        "navigation": {
          "name": "Navigation",
          "becomes": "The parts list: numbered rows, each an encircled reference beside its title, which is the page's table of contents.",
          "anatomy": [
            "table rows ruled in the narrow line",
            "encircled numeral in the first column",
            "title as the link",
            "current row keyed in the orange"
          ],
          "tokens": {
            "rule": "1px solid #A9B0B8",
            "balloon": "26px circle, 1px line",
            "current": "#E8641B circle, #B8480C numeral"
          },
          "states": {
            "default": "Numbered rows on the sheet.",
            "hover": "Title underlined, 2px.",
            "focus": "2px outline around the row's link.",
            "current": "The numeral's circle in the one orange."
          },
          "accessibility": [
            "A real list or table with links; the numerals are text.",
            "aria-current on the current row, not colour alone.",
            "Each row at least 44px tall."
          ],
          "values": [
            {
              "rule": "Number the navigation like a parts list, each item beside its reference numeral.",
              "basis": "translation",
              "cites": [
                "claim:kcc:motif-1",
                "token_rule:hierarchy-13"
              ],
              "because": "Part references are numerals keyed to a list, and the record ranks by part number."
            },
            {
              "rule": "Mark the current item with the one accent, and nothing else in the list.",
              "basis": "translation",
              "cites": [
                "token_rule:color-5"
              ],
              "because": "The single orange accent marks what matters; a second would break it."
            }
          ]
        }
      },
      "motion": {
        "spec": {
          "durations": {
            "explode": "900ms",
            "fade": "600ms",
            "swap": "0ms"
          },
          "easing": {
            "axis": "cubic-bezier(.6, 0, .2, 1)"
          },
          "transforms": "translate along the part's own construction axis only; no rotation, scale or perspective",
          "entrance": "none: the sheet is there when the page opens",
          "hover": "instant fills and line-width changes, no transition",
          "reducedMotion": "Parts jump to their positions; nothing travels."
        },
        "rules": [
          {
            "rule": "Move parts only along their construction axes: apart, and back together.",
            "basis": "record",
            "cites": [
              "token_rule:motion-14"
            ]
          },
          {
            "rule": "Play explosion and collapse on request (a button), forward and back; never on a loop or on scroll.",
            "basis": "translation",
            "cites": [
              "claim:kcc:motion-2",
              "claim:kcc:motion-1"
            ],
            "because": "Contemporary CAD animates exploded views and plays explosion and collapse both ways; the drawing itself shows the order statically."
          }
        ]
      },
      "dimensions": [
        {
          "key": "titleblock",
          "label": "Title block",
          "summary": "Every drawing identifies itself in one ruled block: owner, title, identification number, revision, sheet. On a page it holds the page's own identity, and only real metadata.",
          "tokens": {
            "tb-border": "2px",
            "tb-rule": "1px"
          },
          "values": [
            {
              "rule": "Give every sheet a title block.",
              "basis": "record",
              "cites": [
                "claim:kcc:interface-1"
              ]
            },
            {
              "rule": "Hold the standard's fields (owner, title, identification number, revision); avoid I and O in identifiers.",
              "basis": "record",
              "cites": [
                "claim:kcc:interface-3"
              ]
            },
            {
              "rule": "Fill it with real metadata only: an empty or decorative title block is not one.",
              "basis": "translation",
              "cites": [
                "claim:kcc:interface-3",
                "claim:idr:intent-negation"
              ],
              "because": "The title block is where the drawing identifies itself; the record refuses parts without identifiers."
            }
          ]
        }
      ],
      "notRecorded": [
        {
          "category": "typography",
          "what": "A typeface",
          "why": "The record declares typography free and documents lettering practice, not a face."
        },
        {
          "category": "gridLayout",
          "what": "Density of views and part numbers",
          "why": "Density is not specified by the source; explosion distance and part-number density are declared freedoms."
        },
        {
          "category": "imagery",
          "what": "Photography, and the technique area",
          "why": "Technique is not researched yet; nothing on the record admits or rules out photographs."
        },
        {
          "category": "components",
          "what": "Screen components",
          "why": "The record documents the sheet's own conventions (frame, title block, filing number), not screen controls. All four components are translations of the sheet, the line series and the part reference."
        },
        {
          "category": "shapeGeometry",
          "what": "A screen texture for the sheet",
          "why": "Surface is left open: the record documents paper, vellum, cloth and film, not a texture to imitate."
        }
      ],
      "silence": {
        "color": "source",
        "typography": "source",
        "gridLayout": "source",
        "shapeGeometry": "source",
        "imagery": "source",
        "components": "source",
        "motion": "source"
      },
      "uiNote": "The record documents interface conventions for Engineering Drawing. These four components are contemporary builds on those conventions, not historical artefacts."
    }
  }
}