A Business Model may be created to better understand the business, either for the purpose of improving the business itself, or as a way of discovering requirements for a computer system. Business processes can be modelled at various levels within the organisation. The model uses all the standard rules of UML and includes some user defined extensions. The differences include:

	Slightly different symbols for business actors and business use cases (also known as business processes)
	Some of Jacobson's stereotypes with additions to represent business entities and business workers
	The system boundary is now the business or the part of the business being modelled