A-Z Popular Blog Reliability Search »
Reliability Engineering
Related Guides

5 Examples of Design Life

 , updated on
Design life is the forecast life expectancy of buildings, infrastructure, facilities, equipment and products. As the term suggests, design life is estimated by designers such as engineers or architects based on expected uses and the properties of the design, materials and parts. The following are common examples of design life.

Long-lived Designs

Durability is often a key operational and financial requirement with maximum durability at reasonable cost being the target. For example, if solar panels are financed on a 25 year basis, it is important to customers that they last 25 years.

Fit for Purpose

Durability is often considered with respect to the purpose of an item. For example, things that are intended to be used once such as tissue paper need not be durable.

Safety by Design

Durability is often used to improve safety. For example, the durability of a jet engine is a factor in the safety of an aircraft over time.


In many cases, durability can be an environmental problem. For example, fishing equipment that is lost at sea contributes to pollution and often poses a threat to wildlife. As such, things may be designed to decompose quickly into food as a sustainability strategy.

Planned Obsolescence

In some cases, firms design things to wear down in order to increase sales. If a razor blade lasts forever, customers won't purchase replacements. Planned obsolescence is highly unpopular with customers. As such, it can backfire as competitors may offer more durable products that customer prefer.
Overview: Design Life
The life expectancy of buildings, infrastructure, facilities, equipment and products as forecast by designers.
Related Concepts

Reliability Engineering

This is the complete list of articles we have written about reliability engineering.
Cold Standby
Defensive Design
Design Debt
Design Life
Error Tolerance
Fault Tolerance
Graceful Degradation
Latent Error
Material Strength
Mistake Proofing
Wear And Tear
More ...
If you enjoyed this page, please consider bookmarking Simplicable.

Reliability Engineering

A list of reliability engineering techniques.

Reliability Engineering Definition

The definition of reliability engineering.

Quality vs Reliability

The difference between quality and reliability.


An overview of fail-safe design with a few examples.


A definition of reliability with examples.

Error Tolerance

A definition or error tolerance with examples.


The common types of overengineering.


A definition of entropy with examples.

Tensile Strength

A definition of tensile strength with examples.

Active vs Passive

The difference between active and passive safety.

Defensive Design

An overview of defensive design.

Self-Destruct Mechanism

An overview of self-destruct mechanisms as a safety feature.

Tactile Information

The common types of tactile information.

Flight Envelope Protection

An overview of flight envelope protection.

Earthquake Detection System

An overview of earthquake detection systems.


The definition of hazard with examples.

Product Safety

Common types of product safety.

Err On The Side Of Caution

The definition of err on the side of caution with examples.
The most popular articles on Simplicable in the past day.

New Articles

Recent posts or updates on Simplicable.
Site Map