Comparison of complex systems with mass-market systems

FactorMass-market systemsComplex systems
HCD vs TCDThe system is user centric. If the user is not satisfied with the system, he stops using it.The system is task centric. If the user is not working properly with the system, he can be trained or replaced.
Complexity vs ease of useThe system should be as simple as possible. Secondary usage scenarios can be skipped for ease of use.Ease of use is important for efficiency, but if the subject matter requires multiple was of operations, most of them should be included, especially for safety-critical systems.
Purchase options and marketingMarketing of the system is user centric. The marketing efforts are also included to the product to support additional purchases and user loyalty.Marketing is sales and business centric. Because typically the user is not buying the system, in-product marketing is useless.
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