Demarcation
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Demarcation is the act of creating a boundary around a place or thing. For example, a new country must demarcate their borders to define the physical location of the country. One such case is Eritrea, which gained independence from Ethiopia in 1993. The two countries agreed to the formation of a United Nations-associated boundary commission to determine the final disposition of disputed border zones. However Ethiopia rejected the commission's ruling and as of 2005 the issue remains in dispute.
In the philosophy of science, the demarcation problem is the question of what theories or beliefs lie within the boundaries of science.
Among trade unions, a demarcation dispute may arise when two different unions both claim the right to represent the same class or group of workers.