Durability

Durability is, according to one definition, "the ability of a product to perform its required function over a lengthy period under normal conditions of use without excessive expenditure on maintenance or repair". Several units may be used to measure the durability of a product according to its field of application, such as years of life, hours of use, and operational cycles. In economics, good with a long usable life are referred to as durable goods.

The life span of household goods is significant for sustainable consumption. Longer product life spans can contribute to eco-efficiency and sufficiency, thus slowing consumption in order to progress towards a sustainable level of consumption. Cooper (2005) proposed a model to demonstrate the crucial role of product life spans to sustainable production and consumption.

Durability as a characteristic relating to the quality of goods that can be demanded by consumers was not clearly established until an amendment of the law relating to the quality standards for supplied goods in 1994.

Durability can encompass several specific properties of designed products, including:

Physical properties:

In software:

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