Organism · stable · v1.0.0 · owner: Site system lead · contract 19 of 20 points (open: figma)
Do and don't
Do: On Organisations
Rendered by system-of-systems.tsOpen example: System of systems · Do: On Organisations Use the full-page example to follow page links.
Do: Out of range in words
Rendered by system-of-systems.tsOpen example: System of systems · Do: Out of range in words Use the full-page example to follow page links.
Don't: Untagged
Rendered by system-of-systems.tsOpen example: System of systems · Don't: Untagged Use the full-page example to follow page links.
Don't: Colour-only
Rendered by system-of-systems.tsOpen example: System of systems · Don't: Colour-only Use the full-page example to follow page links.
Rules
| Rule | Why | Check |
|---|---|---|
| The system of systems is drawn from sample layers with versions and compatibility ranges (scripts/site/diagrams.ts) at build time. | A figure read from the real records cannot drift from them. | Automated: npm run site:build (reads the data; fails if it is missing) |
| Out-of-range layers are marked in words. | Colour alone excludes readers. | Automated: tests/unit/site-system.test.ts |
API
No props.
Contract details
The full contract: identity, anatomy, variants, states, tokens, layout, motion, accessibility, content, tests
Identity
| Aspect | Value |
|---|---|
| Id | system-of-systems |
| Layer | Organisms |
| Category | figure |
| Owner | Site system lead |
| Status | stable |
| Version | 1.0.0 |
| Source | apps/showcase/site/system/organisms/system-of-systems.ts (private repository; the contract and the render function are this one module) |
| Version | Date | Change |
|---|---|---|
| 1.0.0 | 2026-10-26 | System of systems, drawn at build time from sample layers with versions and compatibility ranges (scripts/site/diagrams.ts). |
Use when
- Organisations with many brands. Why: Compatibility between layers is the large organisation's problem.
Do not use when
- As a client's map. Why: Sample data, tagged.
Anatomy
| Part | What it is |
|---|---|
| root | figure.visual.d-sos |
| list | ul.sos with layers, versions and ranges |
| out | Layers out of range, marked in words |
Made of: figure-frame, tag, caption.
Used in: pages directly.
Variants
| Variant | When | Why |
|---|---|---|
| default | Wherever its claim is made. | One drawing per claim keeps the evidence consistent. |
States
| State | Rendered or not applicable |
|---|---|
| default | default |
| hover | Not applicable: The system of systems is not interactive, so it has no hover state. |
| focus-visible | Not applicable: The system of systems does not take focus; links and buttons inside it carry their own focus ring. |
| active | Not applicable: The system of systems cannot be pressed. |
| disabled | Not applicable: The system of systems has nothing to disable. |
| loading | Not applicable: The system of systems is rendered at build time and is complete when the page loads. |
| empty | Not applicable: The system of systems is not rendered without content; the builder skips it. |
| error | Not applicable: The system of systems shows no data that can fail. |
| current | Not applicable: The system of systems has no current item. |
| visited | Not applicable: The system of systems is not a link. |
| expanded | Not applicable: The system of systems does not open or close. |
Tokens
| Part | Token |
|---|---|
| range.font | --font-mono |
| out.color | --madder-ink word |
| --system-of-systems-padding-left-space-6 | var(--space-6) |
| --system-of-systems-padding-left-space-9 | var(--space-9) |
| --system-of-systems-border-left-line | var(--line) |
| --system-of-systems-margin-left-space-3 | var(--space-3) |
| --system-of-systems-margin-top-space-4 | var(--space-4) |
| --system-of-systems-margin-right-space-5 | var(--space-5) |
| --system-of-systems-font-size-fs-small | var(--fs-small) |
| --system-of-systems-color-ink-2 | var(--ink-2) |
| --system-of-systems-font-family-font-mono | var(--font-mono) |
| --system-of-systems-color-madder-ink | var(--madder-ink) |
| --system-of-systems-margin-right-space-4 | var(--space-4) |
| --system-of-systems-background-madder-ink | var(--madder-ink) |
Layout
| Aspect | Value |
|---|---|
| breakpoints | Required review at 390, 768, 1024 and 1440 px; execution is not implied by this declaration; the figure reflows to one column under 768 px. |
| wrapping | Labels wrap; drawings scale to the column. |
| textExpansion | Japanese labels are 20 to 40% longer and wrap inside their cells. |
Spacing and rhythm
| Aspect | Value |
|---|---|
| internal | Inside the Figure frame's --space-7 padding. |
| external | --space-9 above and below in prose. |
| rhythm | After the text whose claim it proves. |
Motion
| Aspect | Value |
|---|---|
| None | A record is evidence: it holds still so it can be read. |
Runtime and reuse
Render-only element; mount any registered child enhancements separately. Preserve required Site CSS, fonts, responsive and locale rules from nativeElement.
Accessibility passport
| Aspect | Value |
|---|---|
| role | figure, named by its caption |
| name | The caption, and a text alternative for any drawing |
| keyboard | Not interactive unless stated. |
| focus | Links inside are in reading order. |
| screenReader | Reads the figure's text and caption; drawings have role=img with a description. |
| contrast | Ink on surface 14:1; dyes used only as marks with their words. |
| target | Not a target. |
Content
| Slot | Length | Voice |
|---|---|---|
| layer | 3 words | Layer name and version |
Good: “Region EMEA 2.3 · works with 2.x”
Bad: “Layer A”
Japanese: English only.
Icons and illustrations
None: this element uses no icon or illustration of its own.
Decisions and exceptions
Usage
17 uses across the built pages (measured by npm run site:system).
Tests
| Aspect | Value |
|---|---|
| unit | tests/unit/site-system.test.ts: renders every do and don't example through the registry and checks the classes it owns |
| visual | Not yet: there are no screenshot baselines; the Library page is checked for sideways scroll at 1440 px by tests/site/system.spec.ts |
| a11y | tests/site/system.spec.ts: axe (0 serious or critical) on the element's Library page in light and dark |
| parity | scripts/site/system/check.ts: Library examples are rendered by the same render function the site imports |
Figma
not-yet: The Loom Site Figma library is the last stage of the plan; this element is not mapped yet.