Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Matterhorn Protocol(also: PDF Association Matterhorn Protocol)
- A comprehensive set of test conditions published by the PDF Association for verifying PDF/UA (ISO 14289-1) conformance. The Matterhorn Protocol categorizes accessibility checks into those that can be performed by automated tools and those that require human judgment, providing a…
- Multi-Modal LLM(also: Multimodal Large Language Model, MLLM, Vision-Language Model)
- A large language model that can process and reason over more than one type of input modality, typically text combined with images, audio, or video. In accessibility research, multi-modal LLMs such as GPT-4o, CLIP, and BLIP-2 are increasingly used to analyse screenshots of web…
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