Note: this framework was developed by David A. Garvin and originally published in the Harvard Business Review in 1987.
In 1981, a survey¹ revealed a significant gap in how product quality was perceived in the United States: while 68% of company CEOs believed that product quality had improved, only 25% of consumers shared that view.
A troubling discrepancy – and one worth analyzing.
| Stakeholder | Perceived improvement (%) | Did not perceive improvement (%) |
|---|---|---|
| CEO | 68% | 32% |
| Consumer | 25% | 75% |
| Difference | 43% | 43% |
Although these numbers may seem merely historical today, the cause of the discrepancy lay in the differing interpretations of what quality actually means. The difficulty in clearly defining the term has led – and still leads – to differing interpretations among professionals and consumers. This realization underscores the importance of understanding not only the intrinsic meaning of the term, but also the theoretical aspects of quality and its key dimensions.
In this article, we will discuss the dimensions of quality – one of the most influential conceptual models in modern quality management, introduced in David A. Garvin’s book “Managing Quality: The Strategic and Competitive Edge”.
The 8 Dimensions
According to Garvin, there are eight dimensions of quality that serve as the basis for its analysis and understanding.
1. Performance
Performance is the first key dimension of quality and refers to the main operational characteristics of a product—such as speed and comfort in cars, or image and sound clarity in televisions. In services, like fast food or airlines, it often relates to service speed. This dimension combines product-based and user-based approaches, using measurable attributes to rank brands. However, general performance comparisons can be difficult when benefits aren’t universally valued, requiring context-specific assessments—for example, comparing equipment based on intended use.
2. Features
The second quality dimension is features, or the “extras” that complement a product’s or service’s basic function. These are secondary characteristics that enhance appeal but are not essential to core operation. For instance, a car with a sunroof, leather seats, or an advanced sound system includes features that add value—even though they don’t affect mobility.
3. Reliability
Reliability refers to the probability that a product will fail or experience defects within a specific period. A reliable product operates consistently over time. For example, a reliable car starts every day without issues, and a reliable laptop runs without crashes or errors.
4. Conformance
Conformance is the degree to which a product’s design and operating characteristics meet established standards—evaluating how well the product follows defined specifications. For instance, if a lightbulb is designed to last 1,000 hours, conformance measures how many actually reach that lifespan.
5. Durability
Durability assesses the product’s lifespan before it deteriorates or needs replacement. This dimension involves both technical and economic aspects, considering how long the product remains functional and when it becomes more cost-effective to replace it than to repair it.
6. Serviceability
Serviceability relates to the speed, courtesy, competence, and ease of repair. It includes the customer service experience and the efficiency in resolving issues. Companies that provide fast and effective technical support excel in this dimension.
7. Aesthetics
Aesthetics is a subjective dimension of quality, related to the look, feel, sound, taste, or smell of a product. It is based on personal preference and can vary among consumers. The sleek design of a smartphone or the pleasant fragrance of a cosmetic product are examples of aesthetic appeal.
8. Perceived Quality
Finally, perceived quality is the customer’s overall perception of a product’s quality—often influenced by brand reputation, advertising, and prior experiences. Even without knowing all technical or functional details, consumers form opinions based on these perceptions.
Conclusion
Together, the eight dimensions of quality cover a wide range of concepts. Several of the dimensions involve measurable product attributes; others reflect individual preferences. Some are objective and timeless; others shift with fashion trends. Some are inherent characteristics of goods, while others are attributed characteristics.
The diversity of these concepts helps explain the differences among quality approaches. Each major approach has implicitly focused on a different quality dimension: the product-based approach emphasizes performance, features, and durability; the user-based approach focuses on aesthetics and perceived quality; and the manufacturing-based approach centers on conformance and reliability. Conflicts among these approaches are inevitable, as each defines quality from a different perspective. However, once the concept is broken down and each dimension is considered separately, the sources of disagreement become clear.
For organizations, the practical consequence is straightforward: mastering all dimensions simultaneously is, in most cases, unfeasible due to cost and strategic focus constraints. The competitive advantage lies in identifying which dimensions matter most to your audience and building excellence around them. That is what transforms quality from a broad concept into a concrete strategy.
References
¹ Garvin, D. A. (1988), as cited in: Survey Shows CEOs Uninformed About Quality, Quality Progress, May 1981, pp. 14-17; Binstock, S. L., Americans Express Dissatisfaction with Quality of U.S. Goods, Quality Progress, January 1981, pp. 12-14.
