Involves collaboration between the different public bodies that extends beyond their respective fields of competence with a view to providing the public with a combined response from a single body.

Source: EURO-Lex

The 'whole–of-government approach' to development cooperation is certainly conducive to policy coherence for development, particularly in fragile states. As emphasised by DAC, "working effectively across [political, security, economic and administrative] domains requires donor countries to adopt a 'whole-of-government' approach, involving departments responsible for security, and political and economic affairs, as well as those responsible for development aid and humanitarian assistance."

Source: EURO-Lex