  We study a two-point boundary value problem for a linear
differen\-tial-algebraic equation with constant coefficients by using the
method of parameterization. The parameter is set as the value of the
continuously differentiable component of the solution at the left endpoint of
the interval. Applying the Weierstrass canonical form to the matrix pair
associated with the differential-algebraic equation, we obtain a criterion for
the unique solvability of the problem.
