What Are the Four Phases of Product Design?

Product design is the process of creating a product for the market. It involves a combination of creative, technical and problem-solving skills to create a product that meets customer needs and is competitive in the marketplace.

Product design has four distinct phases: research, concept development, design refinement and manufacturing.


The first phase of product design involves researching customer needs, market trends and competitive products. This can include focus groups, surveys, interviews and other methods for gathering information about what customers want from a product. This research helps to inform the designer about what features are desired in the new product.

Concept Development

The second phase involves taking the research findings and coming up with possible concepts for the new product. Sketching ideas on paper or using 3D modelling software are common ways to create concepts. The goal of this phase is to develop several concepts that meet customer needs and are feasible to manufacture.

Design Refinement

The third phase is where the concept is developed further by refining its details such as materials selection, cost estimates, ergonomics and aesthetics. Computer-aided design (CAD) software may be used to create detailed drawings or 3D models of the product which can then be tested or prototyped.


The fourth phase is where the refined concept is manufactured into an actual physical product that can be sold in stores or online. This often requires working with suppliers and manufacturers for tooling, materials selection and production processes.


Product design requires a combination of creative thinking, technical knowledge and problem solving skills in order to create something that meets customer needs and is feasible to manufacture. The four phases of product design include research, concept development, design refinement and manufacturing.