Several methods have been discussed in literatures so far such as
enumeration method, simplex transportation method, and Hungarian method.
The latest is the best method for solving an assignment problem. Readers may
consult [3], [4], and [5] for detail explanation of the methods.
matrix where all entries are assumed to be nonzero in [1]. We also identify some
drawbacks in the Ones Assignment Method by presenting some examples to
show them.