What you say is true, but these companies aren't successful because their products are usable. They succeeded because of their first-mover advantage, lack of alternatives, and compliance requirements that raise the cost of competition. We don't owe them any respect when it comes to UX.
I can see how it gets tiresome reading repetitive arguments, but a solid theory undergirds all the criticism: that one way to beat SAP, oracle, Microsoft, etc. Is to provide a better user experience.
I can see how it gets tiresome reading repetitive arguments, but a solid theory undergirds all the criticism: that one way to beat SAP, oracle, Microsoft, etc. Is to provide a better user experience.