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Quality vs Reliability

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Quality is the degree to which something is fit for purpose.
Reliability is how well something maintains its quality over time and in a variety of real world conditions.

Quality vs Reliability

Quality is how well something performs its function. For example, a high speed train that is fast, energy efficient, safe, comfortable and easy to operate might be considered high quality.
Reliability is how well something maintains its quality over time as it faces real world conditions. For example, a high speed train that is durable for 20 years and remains safe in high winds and earthquakes.
Quality vs Reliability
Fitness for purpose.
Quality that endures over time and in a variety of real world conditions.

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 ...
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Types of Quality

A list of quality types.

Quality vs Value

The subtle difference between quality and value.

Quality Metrics

The common types of quality metrics.

Service Quality

The primary types of service quality.

Experience Quality

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Critical To Customer

A definition of critical to customer with examples.

Design Life

An overview of design life with examples.

Planned Obsolescence

The common types of planned obsolescence.

Quality Objectives

The definition of quality objectives with examples.

Credence Quality

A definition of credence quality.

Reliability Engineering

A list of reliability engineering techniques.

Reliability Engineering Definition

The definition of reliability engineering.


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.

Design Life vs Service Life

The difference between design life and service life.


The common types of overengineering.


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Tensile Strength

A definition of tensile strength with examples.
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