Which stage is not part of the product development process?

• A. Product launch.
• B. Brief.
• C. Prototype/testing.
• D. Evaluation.

Answer: (A)

Understanding product development means focusing on how the design evolves through defining what’s needed, testing ideas, and judging whether the design fits the criteria. The brief sets the goals and constraints for the project. Prototype/testing lets you build models and try them out to learn and refine the design. Evaluation checks if the final design meets requirements and user needs. Launching the product, by contrast, happens after development—it's about introducing the finished item to users and handling production and marketing, which come after the design work is complete. So, launching the product is not part of the product development process.