ECMA 404(JSON) and ECMA 262(ECMAScript) are called De facto standard.
By contrast, ISO standard is called De jure standard.
Two types of Standards
Defacto Standards (Private requirement)
Standards developed by a private company which are used widely as a result of the choices of consumers
De-jure Standards (Public requirement)
Standards registered at a recognized standards organization such as ITU, IEC, ISO, etc
Defacto Standards vs Dejure Standards - Harada.pdf
Recently, Ecma submit ECMA 404(JSON) specification to ISO/IEC JTC 1.
- 11. ECMA404 (JSON) ISO fast-track. Review/approve disposition of comments responses and 404 2nd edition draft.
This means that ECMA 404 will be ISO standards if ISO/IEC JTC 1 member accept it. ISO/IEC 21778 is ISO version of ECMA 404(JSON).
Current status of ISO/IEC 21778 is FDIS(Final Draft International Standards). FDIS is final process on voting the specification.
For more details about the process, see International harmonized stage codes.
ECMA-414 ECMAScript Specification Suite is very hacky specification. The spec has only 3 pages!
ECMA-414 is just collection of spec links.
If you instersting in ECMAScript specs, please follow ECMAScript Daily.