What is the purpose of the management rights article in a collective agreement?

HRPA’s Labour and Employee Relations guidance explains that collective agreements commonly include a management rights clause, which reserves to the employer the inherent right to manage and direct the enterprise—such as organizing work, assigning duties, and setting operational policies—except to the extent that such rights are limited by the specific terms of the collective agreement or applicable law. It does not, by itself, determine agreement length (which is negotiated), confer special advantage at arbitration, or unilaterally change seniority provisions (which are governed by explicit clauses).