Expression language
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An expression language is a computer language for creating a machine readable representation of specific domain knowledge. Examples include:
• Advanced Boolean Expression Language, an obsolete hardware description language for hardware descriptions
• Data Analysis Expressions (DAX), an expression language developed by Microsoft and used in Power Pivot, among other places
• Jakarta Expression Language, a domain-specific language used in Jakarta EE web applications. Formerly known as "Unified Expression Language", "Expression Language" or just "the Expression Language").
• Rights Expression Languages, machine processable language used for representing immaterial rights such as copyright and license information