The 3 phases of a business case
You should develop your business case over time. It is an iterative process, with extra detail added at each phase.
The amount of detail you need depends on the level of risk and investment. For example, a business case for £1,000 could be about 1 or 2 pages long, but a business case for a £1m project can be over 50 pages long.
The 3 main phases are:
- Strategic Outline Case
- Outline Business Case
- Full Business Case
Strategic Outline Case (SOC)
This is the initial stage. It is used to support an investment for a new project.
You will:
- set out the problem to be solved
- make the case for change
- develop a long list of options
- agree a short list of options
Outline Business Case (OBC)
This stage builds on the approved SOC to confirm the solution which offers optimal value for money.
You will:
- determine value for money
- prepare for the potential deal
- confirm funding and affordability
- plan for successful delivery
Final Business Case (FBC)
This builds on the approved OBC and takes the chosen option through procurement, putting in place delivery plans and providing the final detailed costing.
You will:
- procure the solution
- create a contract for the deal
- ensure successful delivery
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