A Risk Sharing Partnership is similar to a joint venture. However, in a joint venture, the partners all help define the scope for the venture. In contrast, a risk sharing partnership generally occurs after an owner or prime contractor has established the scope. The partners agree to join the project and bear some or all of the costs of their part of the project in return for a share of profits from the result. This is a concept used by both Boeing and Airbus in their respective developments of the 787 and A380.