Organizations in the public, private and non-profit sector are being challenged to meet 21st century standards of performance and to meet challenges that cross sector and organizational boundaries. This course presents the practice of OD and HRD in the context of a changing environment organized around the customer, client and citizen. Today customers, donors, employees and regulators demand more transparent and participatory process. This requires that accountability be designed in, performance standards set, strategy implemented, stakeholders satisfied and sustainability built in. OD/HRD methods aim to enable organizations to learn how to deal with a changing world.