Business cases are commonly used for decision making above the project level. They should be completed by business analysts and as project managers we are familiar with them as an input for the project charter. For me a business case is about the course of action : to get to our destination we can take roads a,b,c... What are the consequences and the risks associated with each alternative ?
But as project managers we are not confronted very often with business plans since they are about the objectives of the business as a whole, not a particular project.
Have you ever had the opportunity to write a business plan ?
What were the criteria according to which you could say : we do not need a business case , we need a business plan ? Saving Changes...