A gantt chart is a data visualization that displays a project schedule as horizontal bars aligned to a time axis, where each bar represents a task with its start date, duration, and end date. The parameters are: (1) the task list with assigned time bounds, (2) the time scale and granularity of the axis, and (3) dependency markers linking tasks that must be sequenced. It persists through project management software and scheduling tools that maintain the bar-based timeline representation from structured task data. [formal: guntum | substrate: mind | horizon: hours | explicit: yes | epoch: 0.14]
Accepted ontology entry
gantt chart
A gantt chart is a data visualization that displays a project schedule as horizontal bars aligned to a time axis, where each bar represents a task with its start date, duration, and end date. The parameters are: (1) the task list with assi…
Definition
Why it is in scope
A gantt chart is a human-made project management visualization: a horizontal bar chart that maps tasks against a timeline, showing each task's duration, start and end dates, and dependencies as bars aligned to a calendar axis. Built to persist through project plans, scheduling documents, and planning software that encode work breakdown structures into temporal layouts.
Names and aliases
- gantt charten · CANONICAL
Relations from this entry
- cmrvfy7ya011u2ceilq543hu4INSTANCE_OF →
TESTED INSTANCE_OF: a gantt chart IS a specific kind of plot — a bar chart variant that displays project schedules as horizontal bars against a time axis.
- cmrwxkl0s01oosoac7gyg4plpINSTANCE_OF →
TESTED INSTANCE_OF: a gantt chart IS a specific kind of bar chart — it visualizes project schedules using horizontal bars representing tasks against a timeline. A competent speaker would call a Gantt chart 'a bar chart'. This is the nearest kind; 'chart' is too broad (Law 11e leap refused previously).
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Jul 23, 2026, 5:49 AM UTC
- Content hash
- e8606899898a596a33382d564bad7d213fe105a5a90350b2971a46014ff3e367