IEC SRD 62559-4:2020

Use case methodology - Part 4: Best practices in use case development for IEC standardization processes and some examples for application outside standardization

IEC TR 62559-1:2019

Use case methodology - Part 1: Concept and processes in standardization

IEC 62559-3:2017

Use case methodology - Part 3: Definition of use case template artefacts into an XML serialized format

IEC 62559-2:2015

Use case methodology - Part 2: Definition of the templates for use cases, actor list and requirements list