Communicating an organisation's requirements in a semantically consistent and understandable
manner and then reflecting the potential impact of those requirements on the IT infrastructure
presents a major challenge among stakeholders. Initial research findings indicate a desire
among business executives for a tool that allows them to communicate organisational changes
using natural language and a simulation of the IT infrastructure that supports those changes.
Building on a detailed analysis and evaluation of these findings, the innovative CRESUS tool
was designed and implemented. The purpose of this research was to investigate to what extent
CRESUS both aids communication in the development of a shared understanding and supports
collaborative requirements elicitation to bring about organisational, and associated IT
infrastructural, change. This paper presents promising results that show how such a tool can
facilitate collaborative requirements elicitation through increased communication around
organisational change and the IT infrastructure.