How to use the Gantt Chart Data Generator.
A schedule table needs explicit duration and dependency assumptions. Use dates only when a calendar and working-day convention are known.
Make the workflow fit your task.
Create a schedule table with task identifiers, durations and dependencies, using the supplied start date and work calendar. Keep date calculations explicit and flag missing calendar assumptions rather than inventing deadlines.
- What you provide
- Tasks, durations and dependencies.
- What you get
- Schedule table suitable for an existing charting tool.
See the input and the result.
Illustrative input and output · a teaching example, not a live WebAct run
Example input
Create CSV schedule data. Start Monday 5 October 2026; Monday–Friday workweek, no holidays. Task A takes two working days. Task B takes one working day and starts the next working day after A finishes.
Completed example
id,task,start,end,duration_workdays,predecessor A,Prepare source,2026-10-05,2026-10-06,2, B,Review source,2026-10-07,2026-10-07,1,A Convention: inclusive working-day dates; B begins after A finishes. No holidays are included.
Load this input into the prompt, then copy it to WebAct to try the task. Your result may differ from the illustration.
Decisions and troubleshooting.
Can durations alone produce reliable calendar dates?
A start date, working-day convention and relevant calendar are also needed. Relative sequencing can be shown while those details remain unresolved.
Why does the chart finish on a day the team does not work?
Check whether durations were treated as calendar days instead of working days, and whether holidays or availability were included.
Try it with your own source.
Replace the example with your material in the task prompt. Keep the requirements you need, then copy the task into WebAct.
Customize and copy the task ↑