If a firm chooses to implement EDI for competitive advantage, how can it assure the advantage will last?

If a firm chooses to implement EDI for competitive advantage, how can it assure the advantage will last? Discuss in scholarly detail. The answer need to be at least 300 words. Please include reference

If a firm chooses to implement EDI for competitive advantage, it can ensure that the advantagewill last by creating a patent or royalty rights on it. One way in which a firm's resources can help...