The basis of design defines which of the following?

• A. It defines the budget only
• B. It defines the project schedule only
• C. It defines the project's overall concept and design intent
• D. It defines the procurement method

Answer: (C)

The basis of design establishes what the project is trying to achieve in its design—its overall concept and design intent. It translates the owner’s program into concrete design direction, setting performance targets, design criteria, and the approach to meet them. It documents the rationale behind design decisions, outlines major systems and how they will work together, and references the codes, standards, assumptions, and constraints that guide development. This creates a clear framework for subsequent design development and helps ensure all parties share the same expectations for performance and form. Budget, schedule, and procurement method are governed by other project documents and plans, not by the basis of design.