BS ISO 9241-221:2023

1   Scope This document specifies the process references model ( PRM ) for human-centred design ( HCD ) according to ISO 9241‑220, as well as the process assessment model ( PAM ) for assessing these processes, based on ISO/IEC 33020 and in accordance with the requirements of ISO/IEC 33004. This HCD PAM contains a set of indicators to be considered while interpreting the intent of the HCD PRM defined in ISO 9241‑220. These indicators can also be applied when implementing a process improvement programme post an assessment.

    NOTE 1  The  PRM  in this document focuses on assessing  HCD  processes rather than system life cycle, for example as in ISO/IEC/IEEE 15288, or software life cycle, as in ISO/IEC/IEEE 12207. 


    NOTE 2  If processes beyond the scope of [ISO 9241‑220](/search?q=ISO%C2%A09241%E2%80%91220) are required, appropriate processes from other PRMs, such as ISO/IEC/IEEE 12207, ISO/IEC/IEEE 15288 or [ISO/TS 18152](/search?q=ISO%2FTS%C2%A018152), can be added based on the business needs of the organization. 

The intended application of this document is computer-based interactive systems. While
  the processes apply to interactive systems that deliver services, they do not cover
  the design of those services. The relevant aspects of the processes can also be applied
  to simple or non-computer-based interactive systems. 

...