Quality is one of the most important aspects demanded from a product. Quality represents image and reliability of a manufacturing company, thus proves the importance for it to be stressed by the company. In manufacturing and quality engineering in general, the field quality itself could not sway from the name Genichi Taguchi. Taguchi contributed a lot in terms of quality in product and process design. Two of the important methods in quality engineering are robust design and loss function.
In robust design, Taguchi stresses that product and process should create a design that can avoid failure or product performance below specified standard. Meanwhile, Taguchi loss function stresses more on tolerance of design. This is because a product that performance outside the tolerance is considered loss in value and products must always perform within the desired tolerance.
These two ideologies are very important for production of a new product. Acceptance of a new product by consumers depends very much on the initial impression in terms of quality. Physiologically, it is very hard for a consumer to use a new product compared to using a product which the consumer has used before. If a consumer chooses to use a new product rather than an existing product, feedbacks will go very bad if the quality of the product is not good. In fact, quality level of a new product must be very high especially in the initial stage where it is still gaining acceptance from the society.
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