Reference
Glossary
The words the chart and these pages use, in plain terms.
| Term | Means | More |
|---|---|---|
| Working day | A day of the working week that is not a holiday, from the working calendar. Lengths, lags and slack count working days. | Settings |
| Start and end | The two Jira date fields a bar runs between, both inclusive (by default Start date and Due date). | Install |
| Parent / summary | An epic, or a story with subtasks. Its bar spans its issues; its dates come from them. | Read the chart |
| Milestone | A zero-length moment, drawn as a diamond: issues of type Milestone or the types an admin chose. | Settings |
| Dependency | A Jira issue link that orders two issues: the second waits for the first. | Dependencies |
| Dependency type | Which ends are tied: finish → start (the default), start → start, finish → finish, start → finish. | Dependencies |
| Lag | Working days added to a dependency: +2 leaves two days between; −1 lets the second start a day early. | Dependencies |
| Auto-scheduling | Moving an issue later pushes what waits for it, so dependencies hold. Nothing is pulled earlier. | Dependencies |
| Critical path | The chain of issues that decides the finish date: if one slips, the finish slips. | Critical path |
| Slack (float) | How many working days an issue can slip without moving the finish date. Zero on the critical path. | Critical path |
| Baseline | A saved copy of the plan's dates, to compare the plan with later. | Baselines |
| Variance | How many working days an issue ends later (or earlier) than in the baseline. | Baselines |
| Draft | Date changes kept on the chart, not yet in Jira, until you publish or discard them. | Draft mode |
| Overdue | Past its end date and not done. | Read the chart |
| Overbooked | A person with two or more issues at the same time. | Workload |
| Resolve overlaps | Moving the later of a person's overlapping issues to their free time (levelling). | Workload |
| Plan health | A score out of 100 for how sound the plan is, with what costs points. | Plan health |
| View | A saved filter with the way the chart looks, shared by the project and opened from a link. | Views |
| Plan | The issues the chart shows: the project's, or those of a JQL filter. | Views |
Jira terms
Issue, epic, story, subtask, status, workflow step (transition), assignee, fix version (release), sprint and JQL mean what they mean in Jira; the chart reads them from Jira as they are.