Addiction to the supplier

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vendor lock-in - a situation in which the client is dependent on the supplier's products to the extent that he can not change the supplier without incurring the cost of the change.

In the case of software, this term refers to the inability to exchange a software component for another because of incompatibility. Software vendors often create different architectures, system interfaces that prevent easy migration. Often such a situation also results from the incorrect design of the system. It may happen that the incompatibility of the components is a deliberate intention of the supplier who derives benefits from the addiction of the buyer - in the business model of related products (razor and blades) the supplier sells the main product (eg razor, printer, telephone) at a reduced price, in order to benefit from the sale of components that fit it (eg blades, inserts, subscription).

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