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fix(qfd): correct §4 roof matrix size and glyph convention

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Two stale bits in §4's preamble. (a) "15×15 roof matrix" still
referenced H14's pre-retirement column count — corrected to 14×14.
(b) The symbol legend named classical QFD glyphs (◎ ○ × ⊗) but
quality-house.md's roof actually renders ASCII (++ + − −−). Both
listings now lead with the ASCII glyphs that match the source of
truth, with classical equivalents kept in parens.
This commit is contained in:
Julien Calixte
2026-05-19 14:52:43 +02:00
parent 1c6dfec7e6
commit db61a83f06
1 changed files with 5 additions and 5 deletions
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docs/qfd.md
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@@ -159,11 +159,11 @@ before the runtime decision does.
## 4. Roof — HOW-vs-HOW tradeoffs
The roof shows where pushing one characteristic pushes another the wrong way.
Classical QFD single-character symbols: **`◎`** strong reinforcement,
**`○`** mild reinforcement, **`×`** mild conflict, **`⊗`** strong
conflict. The 15×15 roof matrix lives in
[`quality-house.md`](quality-house.md); the cells that actually shape
the design are called out below.
ASCII glyphs (with classical QFD equivalents): **`++`** strong
reinforcement (`◎`), **`+`** mild reinforcement (`○`), **`−`** mild
conflict (`×`), **`−−`** strong conflict (`⊗`). The 14×14 roof matrix
lives in [`quality-house.md`](quality-house.md); the cells that
actually shape the design are called out below.
### Conflicts that actually shape the design