In 2002, however, implementation was based on a division of labour between clients and UNOPS, which meant that United Nations organizations could outsource part of their work, assigning responsibilities according to expertise and comparative advantage.
不过2002年项目厅和客户分工合作执行项目，换句话说联合国组织可将工作外包，按照专门知识及相对优势分配责任。