What are the factors which are employed in the engineering design?

The key factors employed in engineering design include:

1. Functionality: The design must meet the intended purpose and user requirements.
2. Safety: Ensuring the design is safe for users and complies with relevant standards and regulations.
3. Cost: Consideration of the budget and overall cost-effectiveness of the design.
4. Materials: Selection of appropriate materials that meet performance, durability, and environmental standards.
5. Sustainability: Incorporating environmentally friendly practices and materials that minimize waste and energy use.
6. Aesthetics: The visual appeal of the design and how it fits into its environment and culture.
7. Manufacturability: The ease with which the design can be produced, including considerations for manufacturing processes and technologies.
8. Usability: Ensuring that the design is user-friendly and meets the needs of the end-users.
9. Ergonomics: Designing for comfort, efficiency, and safety in user interactions.

10. Regulatory Compliance: Adhering to laws, standards, and codes relevant to the design.

Each of these factors plays a critical role in the successful outcome of an engineering project.