Glossary

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SMILES(also: Simplified Molecular-Input Line-Entry System)

A text-based notation system that represents chemical molecular structures as short character strings, making them both machine-readable and human-readable. For accessibility, SMILES is significant because it provides a linear, non-visual way to represent chemical structural…

Semantic Enrichment(also: Semantic Annotation, Semantic Markup Enhancement)

Semantic enrichment is the process of adding meaningful structural and contextual information to content that may lack it in its original representation. In the context of web accessibility, this often involves augmenting presentation-oriented markup with data attributes or…

Speech Rule Engine(also: SRE)

An open-source JavaScript library that generates speech and Braille output for mathematical expressions given in presentation MathML. The Speech Rule Engine performs semantic interpretation of mathematical formulas — analyzing symbols, determining operator scope, and building…

Structural Abstraction(also: Formula Abstraction, Expression Collapsing)

Structural abstraction is an accessibility technique that simplifies complex visual structures — particularly mathematical formulas — by initially collapsing sub-expressions into symbolic summaries and allowing users to progressively expand and explore them at their own pace.…

Syntactic Structure(also: Program Structure, Code Structure)

The hierarchical arrangement of elements in a programming language according to the language's grammar rules, including how statements, expressions, and blocks are nested and related to one another. In accessibility contexts, syntactic structure is significant because sighted…

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