Begin of the insertion**AsEnd of the insertion Begin of the deletion **As**End of the deletion a project Begin of the insertionmanager**End of the insertion Begin of the deletion managerEnd of the deletion using baselines to track progress and deviations, Begin of the insertionIEnd of the insertion Begin of the deletion
**IEnd of the deletion want Begin of the insertiontoEnd of the insertion Begin of the deletion to**End of the deletion see one or more selected baselines rendered as additional bars directly in the Gantt chart, Begin of the deletion
**so that**End of the deletion so that I can identify schedule deviations (ahead of / behind plan) at a glance without opening the work package list details.

**Acceptance criteria**

* In the Gantt view, the user can activate a baseline overlay via the existing baseline selection.

* For each work package, the baseline is displayed as a second bar next to (e.g. below) the current work package bar.

* The Begin of the insertionoverlay also applies to milestones (and phases), so that milestone shifts against the baseline are visible directly in the chart.

* TheEnd of the insertion user can freely choose which baseline to display (e.g. "yesterday", "last working day", a specific date, or a saved baseline).

* It is possible to display and compare multiple baselines simultaneously (e.g. Baseline 1 and Baseline 2 next to the current bar). Begin of the insertionWhen multiple baselines are shown, there is a clear arrangement (stacking order, row height) and visual distinction between them (e.g. different grey shades plus a legend), so that a trend across several baseline dates remains recognizable at a glance.End of the insertion

* The baseline bar(s) are styled in grey and/or semi-transparent to be clearly distinguishable from the current (colored) plan bar.

* Each baseline bar is positioned exactly at its original start and finish date; the current bar remains unchanged.

* Deviations are immediately recognizable: if the current bar starts/ends earlier or later than the baseline bar, this is visible without any additional interaction.

* The Begin of the insertiondirection of the deviation (ahead of / behind plan) is visually indicated (e.g. via color coding or a delta connector between the baseline finish and the current finish), and the deviation in days is shown in the bar's tooltip.

* TheEnd of the insertion overlay works consistently with existing Gantt features (zoom levels, collapsing/expanding, Begin of the insertionfiltering).End of the insertion Begin of the deletion filtering)End of the deletion

* Work packages without baseline values (e.g. created after the baseline date) show no baseline bar.


**Technical notes**

* Reference for expected UX: Jira Advanced Roadmaps baseline display (screenshot see activity Begin of the insertiontab).End of the insertion Begin of the deletion tab)End of the deletion


**Permissions and visibility considerations**

* Begin of the insertionToEnd of the insertion Begin of the deletion _ToEnd of the deletion whom is this feature Begin of the insertionvisible?End of the insertion Begin of the deletion visible?_End of the deletion

* Begin of the insertionToEnd of the insertion Begin of the deletion _ToEnd of the deletion all users who have permission to view the Gantt chart / work packages of the project; the baseline overlay follows the same visibility rules as the existing baseline function in the work package Begin of the insertiontable.End of the insertion Begin of the deletion table._End of the deletion

* Begin of the insertionWhenEnd of the insertion Begin of the deletion _WhenEnd of the deletion is it not Begin of the insertionvisible?End of the insertion Begin of the deletion visible?_End of the deletion

* Begin of the insertionWhenEnd of the insertion Begin of the deletion _WhenEnd of the deletion no baseline is selected/activated, when the user lacks permission to view the work packages, or for work packages that have no data for the selected baseline Begin of the insertiondate.End of the insertion Begin of the deletion date._End of the deletion


**Translation considerations**

* Begin of the insertionKeyEnd of the insertion Begin of the deletion _KeyEnd of the deletion terms and phrases in the key Begin of the insertionlanguagesEnd of the insertion Begin of the deletion languages_ End of the deletion

* "Show baseline in Gantt chart" (EN) / "Baseline im Gantt-Diagramm anzeigen" (DE)

* Tooltip labels such as "Original start date" / "Ursprüngliches Startdatum" and "Original finish date" / "Ursprüngliches Enddatum" Begin of the insertion

* Deviation labels such as "Deviation" / "Abweichung", "ahead of plan" / "vor Plan" and "behind plan" / "hinter Plan"End of the insertion


**Out of scope**

* Changes to the existing baseline display in the work package list/table.

* Automatic scheduling or re-planning based on baseline deviations.

* Baseline variance reports/exports (numeric deviation reports beyond the visual Begin of the insertionoverlay); the in-bar tooltip deviation in days is part of the visual overlay and not considered a separate report.End of the insertion Begin of the deletion overlay).End of the deletion

* Editing or moving the baseline bars (baselines remain Begin of the insertionread-only).End of the insertion Begin of the deletion read-onlyEnd of the deletion