Images should contribute to the page's explanation and remain understandable in the contexts where readers encounter them.
A practical strategy starts with the decision the work must support. Before adding output, define what a useful result would allow the reader, customer, or team to do. That choice determines which inputs deserve attention and which activities can wait.
Choose the work that matters
- Choose images that support the task.
- Provide useful text alternatives when needed.
- Prepare appropriately sized files and descriptive context.
Inspect the affected page in its actual site context. A change to one URL may also affect navigation, related pages, or how existing visitors reach information. Keep a record of the original state so the consequences of the change remain understandable.
An illustrative application
A lighting tutorial could show two setups with captions explaining which placement creates each visible effect.
Treat this as a hypothetical planning example, not a reported customer result. The useful exercise is to identify the necessary evidence, the decision being supported, and the person responsible for checking the work. Substitute actual business facts before applying it.
Five weak points to design around
AI alt text describes details unrelated to the image's purpose. The model inventories the scene without considering context. Describe the information the image contributes to the page.
Decorative images receive distracting verbose descriptions. Every visual is treated as instructional. Distinguish decoration from meaningful content when implementing text alternatives.
Image files slow down otherwise simple articles. Original uploads are much larger than the displayed need. Resize and compress assets while preserving necessary detail.
Charts have images but no accessible explanation. Important values exist only inside pixels. Provide a nearby text explanation or data table for the key information.
Image captions make claims the image cannot establish. The caption interprets beyond the visible evidence. Separate observed details from broader claims requiring sources.
Define success before expanding
Track image loading issues, accessibility defects, and whether illustrations help readers complete the task.
Begin with a bounded piece of work and write down what would count as an acceptable result. If the initial attempt fails, identify the specific weak point before increasing volume. A useful strategy gives the team a reason to continue, revise, or stop—not merely another publishing target.
Official reference for the platform or standard discussed: W3C WAI: image alternatives.