diagram

diagram IS a specific kind of visualization: a symbolic representation of information or knowledge. A competent speaker would call a diagram a visualization. Direction specific→general per Law 9.

A nomogram is a specific type of diagram: a graphical calculating device. A competent speaker would call a nomogram 'a diagram' — it uses visual marks to depict mathematical relationships. Specific→general INSTANCE_OF direction.

A flowchart is a specific type of diagram — it represents processes using visual symbols and arrows. A competent speaker would call a flowchart 'a diagram.' Specific→general INSTANCE_OF.

Remove diagrams right now — does nomography stop operating? Yes. Nomography IS the practice of solving equations via calibrated graphical plots. Without diagrams, nomography ceases to function. The removal test passes.

Removal test (Law 8): a flowchart is a visual diagram showing steps and decisions. Remove diagram (the visual representation convention) and a flowchart ceases to operate — it is fundamentally a diagrammatic form. This is about operating, not sayability (Law 8b). Direction: diagram is older than flowchart (chronologically).

A dashboard IS a specific kind of diagram: a visual arrangement of information designed for quick comprehension. A competent speaker would call it 'a diagram' of performance or status. Specific→general per Law 9.

A swarm plot IS a specific kind of diagram that visualizes categorical scatter — specific→general per Law 9. A competent speaker would call it 'a type of diagram.'

mind-mapping IS a specific kind of diagram — a radial/branched diagram for organizing information. Competent speakers call mind-maps 'diagrams.' Nearest kind is diagram.

Which-came-first test: diagram (epoch 0) is older than schematic (epoch 0.01). Schematics developed as specialized diagrams showing functional relationships. The general concept of diagram fed into the more specific concept of schematic.

Test: specific→general (Law 9). A schematic IS a specific kind of diagram — one that shows functional/technical relationships between parts rather than spatial/geometric ones. A competent speaker would call a schematic 'a diagram'. Nearest kind: diagram.

A fishbone diagram IS a specific kind of diagram. The fishbone (Ishikawa) diagram is a visual cause-analysis tool that arranges potential causes along branching categories. A competent speaker would call it 'a diagram.' Pinned sense: the visual/structural kind (not the procedural sense of 'diagram').

chart INSTANCE_OF diagram. A chart is a specific kind of diagram — a visual representation of data or information using graphical elements. A competent speaker would call a chart 'a diagram.' The diagram entry is the nearest kind; no intermediate rung exists between chart and diagram.

flow diagram IS a specific kind of diagram — a visual representation that maps process sequences. Law 9: the specific (flow diagram) points at the general (diagram). A competent speaker would call a flow diagram a type of diagram. The nearest-kind ladder: flow diagram INSTANCE_OF diagram.

A reliability-block-diagram IS a specific kind of diagram: a visual technique using block arrangements to model system reliability. A competent speaker would call it 'a diagram.' Law 9 INSTANCE_OF (specific→general).

Process-map is a specific kind of diagram: a visual representation using standardized symbols. A competent speaker would call a process-map a type of diagram.

A control chart IS a specific kind of diagram: it is a time-series plot with control limits used to monitor process stability. A competent speaker calls a control chart a type of diagram.

A network diagram IS a specific kind of diagram — it represents entities as nodes and relationships as edges for visualization of topology and connectivity. A competent speaker would call a network diagram 'a diagram'. Law 9 INSTANCE_OF.