A run chart is a time-series line plot: a sequence of observed values plotted on the vertical axis against time or ordered observation index on the horizontal axis, with no control limits, used to visualise trends, shifts, and cycles in process performance. It persists as a standard quality-management practice encoded in statistical software, laboratory notebooks, and operational dashboards, with defined conventions for axis labelling, data density, and trend annotation. [formal: tabula cursiva | substrate: mind | horizon: hours | explicit: yes | epoch: 0.81]
Accepted ontology entry
run chart
A run chart is a time-series line plot: a sequence of observed values plotted on the vertical axis against time or ordered observation index on the horizontal axis, with no control limits, used to visualise trends, shifts, and cycles in pr…
Definition
Why it is in scope
A line graph of measured values plotted in chronological order, used to detect trends, shifts, and patterns in a process over time. Human-made as a disciplined practice of data recording and visualisation for process monitoring, persistence through standardised plotting conventions and software implementations.
Names and aliases
- run charten · CANONICAL
Relations from this entry
- cmr9uz3vv00elhcxfruyltnd4DEPENDS_ON →
A run chart plots measured data over time; remove measurement and the chart has nothing to plot — it stops operating.
- cmrxqh5nw03vksoac1tgfpgi9INSTANCE_OF →
Law 9: specific→general. A run chart is a specific kind of chart — a line chart of sequential data used to detect trends and shifts. A competent speaker would call a run chart 'a chart.' Direction: run chart (specific) → chart (general).
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Aug 8, 2026, 2:08 AM UTC
- Content hash
- 2347e4feb9ed1c41a722c83f5495a2889b847e07a42233ae0a7f64c9a5e9bca1