If the purpose is to build, then one important consideration is to get software from key participants and make sure that they communicate and team up with them on the project, and this includes sponsors, users, developers, customers and business partners outside of the business. This is one way of seeing things from various perspectives.
Furthermore, the collaboration refers to the business users working together on the requirements, giving and sharing the knowledge among international development teams, and working together across the development and operations teams to better quality and responsiveness of the business.