ECMA

Ecma International

Ecma International (originally the European Computer Manufacturers Association, now officially Ecma International) is a standards organization for information and communication systems founded in 1961 and based in Geneva. Ecma is best known for the ECMAScript specification (the language behind JavaScript), the JSON data interchange format, the C# and Common Language Infrastructure specifications, the Office Open XML formats, and the Dart language. Ecma standards follow a simple numbering scheme (ECMA-N) with no edition in the printed identifier — editions are tracked as separate metadata.

IndustrySyntax ECMA identifiers follow three shapes depending on the document class. Standards: 'ECMA-<number>[-<part>]' (the publisher token joins the number directly with no space; part only appears for multi-part standards like ECMA-418-1). Technical Reports: 'ECMA TR/<number>'. Mementos: 'ECMA MEM/<number>'. Edition is separate metadata and is NOT rendered in the printed identifier string.

Doc Types

Components

Relations

Stages

Document Types 3

Standard

▼

Technical Report

TR▼

Memento

MEM▼

Components 5

Structured elements that make up a ECMA identifier:

Publisher

ECMA — joined directly to standard number with no space ('ECMA-262'), separated by a space for TR/MEM ('ECMA TR/101')

e.g.ECMA

Type Prefix

nil for Standards, 'TR' for Technical Reports, 'MEM' for Mementos

:type_prefix

Number

Document number, kept as a string to preserve any leading zeros

e.g.262

:number

Part

Part number for multi-part standards, appended with hyphen (e.g. '-1' in ECMA-418-1)

e.g.1

:part

Edition

Edition metadata (separate from the printed identifier). Decimal editions like '5.1' occur. NOT rendered in to_s.

:edition

PubID Algebra 5

Relationships between ECMA identifiers:

Relation	Description	Syntax	Example
Standard	Publisher joined directly to number with no space	`ECMA-<number>[-<part>]`	`ECMA-262`
Multi-part Standard	Standard split into multiple parts	`ECMA-<number>-<part>`	`ECMA-418-1`
Technical Report	TR separated by space + slash	`ECMA TR/<number>`	`ECMA TR/101`
Memento	MEM separated by space + slash, year as number	`ECMA MEM/<year>`	`ECMA MEM/1970`
Without Publisher	Bare form, no leading ECMA token	`-<number> \| TR/<number> \| MEM/<year>`	`-262`