Gantt Chart

You might say

Put design, development, testing, and launch on a timeline with dependencies, and show what a delay changes.

A schedule chart that uses timeline bars to show task dates, duration, milestones, and dependenciesA release can require interaction design before development and testing. If development moves, dependent testing and the launch milestone move too. A Gantt chart exposes schedule impact, but unknown durations should not become invented dates.

Know first

Product Roadmap

GanttGantt Diagram

See how a development delay moves testing and release

Scroll sideways to see the full schedule

Task1234567891011121314

Interaction design3d

Development5d

Testing2d

Release◆

Dependency: design → development → testing → release

What a Gantt chart needs to show

Bars encode dates and duration: Position shows start and finish, while length shows duration.

Dependencies expose schedule impact: When a predecessor moves, connected tasks and milestones may move with it.

Estimates preserve uncertainty: Unknown duration, external approval, and risky dependencies need visible labels rather than invented dates.

Quick checkChoose the best answer

Which information belongs in the Gantt chart for a trip-collaboration feature?

Interaction design takes 3 days; development takes 5 days after design; testing takes 2 days after development; passing tests is the release milestoneThis year we want more travelers to collaborate successfully with companionsSet every unknown task to finish tomorrow afternoon so the chart looks complete

You can say this to an AI Agent

Using these confirmed tasks, owners, durations, and dependencies, draft a Gantt chart for the trip-collaboration feature. Show task dates, dependency links, and the release milestone, then simulate a two-day development delay. Mark missing durations or dependencies as estimates needed instead of inventing dates. Finish with the dependencies that can move the release and the risks still open.

Learn next

1Staging→2Deployment→

Want GPT or Codex?VibeHubGPT support

GPT-6 Astra

Build in 3D. Put your computer to work.