Content publishing
Create a Text Alternative for a Data Chart
Published by whatisADA / Grow Wild Agency · Updated
Purpose and preparation
Make the chart's message and relevant data available without requiring visual interpretation. Start with the decision the chart supports and preserve relationships such as trends, categories and units. Keep the alternative synchronized with the chart's data.
A practical example
A line chart compares three service wait times and highlights a sharp increase in one category.
How to check it
- Write a short identification of the chart and its main point. Identify which values or relationships readers need to verify the conclusion.
- Provide a nearby structured explanation, data table or accessible detailed description. Include labels, units and important changes without relying on color names alone.
- Compare the alternative against the chart and underlying data. Test the route to the detailed information with the keyboard and assistive technology.
What can be missed
A table of numbers may preserve the data while omitting the chart's intended conclusion. A good alternative often needs both a concise interpretation and access to detail.
Record your test
Use this worksheet to record what you actually checked. Notes stay on this device when you choose Save; they are not sent to us. Avoid personal or confidential information on shared devices.
These are your observations, not automated results or a conformance certificate. A complete evaluation needs appropriate scope, supported technologies, all applicable criteria and relevant page states.
Primary sources and scope
This is independent implementation guidance with original examples. The linked standard contains the full definitions, exceptions and conformance requirements. A criterion or checklist alone does not establish legal applicability or whole-site conformance.