Which is a type of specification?

• A. Quality Agreement
• B. Proprietary Specification
• C. Construction Schedule
• D. Feasibility Study

Answer: (B)

A proprietary specification is a type of specification because it calls for a specific product or brand to be used in the project. In interior design practice, this kind of spec precisely names the exact item (or manufacturer) so the contractor purchases and installs that exact product, ensuring consistent appearance and performance and simplifying coordination with suppliers.

The other items serve different roles: a quality agreement focuses on contractual quality expectations rather than detailing materials or products; a construction schedule outlines timelines for work; a feasibility study analyzes whether the project is viable. Hence, identifying a specific product or brand is what makes a proprietary specification the correct type.