The purpose of a business case is to capture the reasoning for initiating a project or task. It is often presente in a well-structured written document, but may also sometimes come in the form of a short verbal argumentation. The logic of the business case is that, whenever resources such as money or effort are consumed, they should be in support of the business. An example could be that a software upgrade might improve system performance but the "business case" is that better performance would improve customer satisfaction.