The Business Case presents the optimum mix of information used to judge whether the project is (and remains) desirable, viable and achievable, and therefore worthwhile investing in.
The Project Board and stakeholders must have confidence at all times that the project remains viable.
In PRINCE2®, the Business Case provides the vital test of the viability of the project.
It provides the answer to the question: is the investment in this project still worthwhile?
Since this viability question is ongoing, the Business Case is not static.
It should not be used only to gain initial funding for a project, but should be actively maintained throughout the life of the project and be continually updated with current information on costs, risks and benefits.
When making investment decisions, it is important to ascertain what benefits can be gained when, with what degree of risk and from what level of investment.
Projects should be evaluated on how well they will contribute to corporate objectives.
Such analysis enables one project to be compared with another so that the organization can choose to invest in the best set of projects.
PRINCE2® is a Registered Trade Mark of the Office of Government Commerce in the United Kingdom and other countries.