The software identification and software entitlement standards are developed under the ISO/IEC framework.
The process for developing ISO/IEC standards is quite complex. David Bicket, convenor of working group 21 (WG21) which was responsible for the creation of the software identification tag standard, explains the process.
Information on this ISO/IEC 19770-2 standard can be found here.
The software entitlement tag standard, ISO/IEC 19770-3, was released in 2016. For more information, click here.
An Introduction to the ISO/IEC 19770-4 Resource Utilization Measurement Standard
This standard defines a systematic method vendors can use to publish software usage data for consumption by customers and tools. The most current version of this standard was published in 2017. For more information, click here.
Download the ISO/IEC 19770-5 Standard that defines the Overview of the ISO standards and the vocabulary associated with software asset management
The ISO/IEC 19770-5 standard is available from the ISO website (see the preview here), but is also downloadable for free from the ISO/IEC Information Technology Task Force (ITTF) web site.