Solution of assignment problem of restriction of qualification

The problem of whether someone qualifies for a job in actual assignment is often met. In this paper, a mathematical model of the assignment problem with restriction of qualification is set. With the method, a method of deciding the existence of a solution of this problem is given by transforming the beneficial matrix into the decision one; furthermore, the beneficial matrix is transformed into solution one when the problem has a solution and then the assignment problem with restriction of qualification is transformed into the traditional assignment one. At last, we testify this method is effective with a number example.