“Soft furnishing design” corresponds to 1, 3, 5, and 7. “Hard furnishing design” corresponds to 2, 4, 6, and 8. The two intersect and merge to form a perfect ten-space. The combination of hard and soft furnishings creates a space. The connection between the user and the space creates design. By leveraging the characteristics of the space, integrating the details of soft furnishings, and incorporating user needs, we create a human-centered essential design.