Symbolid

Symbolid is a term used in information technology to refer to a unique identifier for a symbol within a data set, software system, or specification. The name is composed of “symbol” and “id” and is commonly written as symbolId or symbol_id depending on language conventions.

In programming, a symbol table maps names to information about program symbols. A symbolId is often used as a stable key to retrieve metadata such as the symbol’s name, type, scope, and attributes, enabling efficient lookup and disambiguation independent of the symbol’s textual form.

In data modeling and APIs, symbolId appears as a field name in records that reference a distinct symbol from a symbol library, such as glyphs, icons, or semantic tokens. It is typically implemented as an integer or UUID, chosen to remain stable across changes to the symbol’s label.

In GIS and CAD contexts, SymbolID is used to identify a particular graphic symbol in a symbol library, allowing maps and drawings to reference consistent icons or shapes.

In ontologies and knowledge graphs, a symbol may be represented by an IRI, with symbolId serving as a local identifier within a given namespace or dataset. Variations include symbolId, SymbolID, or symbol_id, reflecting different naming conventions.

Guidelines emphasize using a symbolId that is unique within its namespace and preserved across system changes. Related terms include identifier, symbol, symbol table, token, and glyph library.