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Should live updates be batched or added to the DOM individually? This is a classic "it depends" question. Under many circumstances, batch updates to a page can improve usability and accessibility because it imposes less interruptions for the user. In other cases, smaller, more frequent page updates may be more effective for time-sensitive or high-priority information. The aria-atomic property lets you specify if updates should be read as a whole or in more frequent chunks.
More Information
- DHTML Developer Checklist: A checklist of techniques for modern, accessible JavaScript programming
- UX Walkthrough Accessibility HeuristicsReview Protocols: A checklist of techniques for evaluating the accessibility of your Web site.