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All glossary terms

Projects

Milestone

A milestone is a significant checkpoint in a project that marks the completion of a phase or a key deliverable, used to measure progress against the plan.

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Definition

What is Milestone?

A milestone is a significant checkpoint in a project that marks the completion of a phase or a key deliverable, used to measure progress against the plan.

A milestone is a marker, not a task. It has no duration - it is a moment that signals something important has been reached, such as "design approved" or "beta launched." Milestones give a project a sense of progress and rhythm.

Milestones are useful for communication and control: they let stakeholders track high-level progress without following every task, and they are natural points to review, get sign-off, or adjust the plan.

Atlas lets teams set milestones on project timelines, so major checkpoints are visible alongside the tasks that lead up to them.

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FAQ

Questions, answered.

What is the difference between a milestone and a task?
A task is work with a duration that someone does. A milestone is a zero-duration checkpoint marking that a phase or deliverable is complete - a marker of progress, not work itself.
Why use milestones in a project?
Milestones communicate high-level progress, provide natural review and sign-off points, and help stakeholders track a project without following every individual task.

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Put milestone to work in one platform.

Atlas is the all-in-one work OS - tasks, projects, CRM, contracts, HR, and automation on one shared record, with a governed AI assistant. Start free.

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