Specialized guidance in preparation.

Clarify whether people only inspect a schedule or also edit it. Displaying a duration, changing a date, and modifying a dependency require separate behavior and validation.

The reviewed Apple chart guidance supports clear context, consistent encodings, and accessible access to data. It does not establish the specialized design and interaction rules needed for this topic. No corresponding chart API was found in the installed Liquidify exports or catalog.

Research still needed

• Interval boundaries, incomplete or uncertain dates, time zones, working calendars, and how milestones differ from durations.
• The meaning of task dependencies, overlaps, completion, and grouping, including what must remain visible when the schedule is dense.
• An accessible reading and navigation model, plus keyboard alternatives and validation for any schedule-editing interaction.

Available guidance

Use the Data visualization overview to define the reader's question and distinguish general guidance from implementation support. Review Axes and labels and Color palettes where those principles apply.

A specialized renderer and its accessibility behavior still need evaluation. This page does not recommend a package, define a Liquidify API, or mark the topic complete. A production diagram brief will require the representation and its rules to be established first.

Further reading

• Apple: Charting data
• Apple: Charts