Оpen Standard

An open standard is a standard that is publicly available and has various rights to use associated with it and may also have various properties of how it was designed (e.g. open process) .

Open standards are, typically, specifications: formal descriptions of software or software interfaces. Open standards may have reference implementations, but the description in the formal standard typically takes precedence over the behaviour of a reference implementation .

Sources:

Definition of "Open Standards" [Електронний ресурс]: / Режим доступу: https://www.itu.int/en/ITU-T/ipr/Pages/open.aspx

Opening Standards: The Global Politics of Interoperability, Laura DeNardis, editor, MIT Press, 2011.