Five-case model

Introduces the five-case model and how to use it to develop your business case. Outlines the purpose of each of the five cases and provides guidance on how to manage risk and uncertainty in the business case.

In the five-case model, the strategic case is the foundation, as it sets the scene for everything else.

In the economic case you will use optioneering to help find the best value-for-money approach to addressing the issues identified in the strategic case.

The commercial case should demonstrate that the preferred option is able to be procured in a viable way both for the public sector and for the service providers.

The financial case determines the affordability of the investment proposal, including whole-of-life costs and funding requirements.

The management case is to put in place appropriate arrangements for the successful delivery of the business case and its constituent projects.