
HIERARCHICAL SYSTEM DESCRIPTION (HSD)
USING MODAF AND ISO 26800
Mike Tainsh
Lockheed Martin, Ampthill, Bedford, UK
MODAF provides a systems engineering framework for the repre-
sentation of requirements based on a series of viewpoints. It provides
the top level system description for UK MoD’s Human Factors Inte-
gration Programmes (HFIPs). This paper reports how this approach
can be supplemented using the concepts from ISO 26800 to provide
a technique for documenting parts of the HFIPs design work. Central
to this technique is the concept of integration/fitting which is seen
in two parts: organisational and technical. The Hierarchical System
Description ...