Final answer:
A project constraint is a limitation or condition that must be satisfied by a design. The customer requirements is NOT a project constraint, as it represents the goals and expectations set forth by the customer, rather than a limitation or condition that must be met.
Step-by-step explanation:
A project constraint is a limitation or condition that must be satisfied by a design. The constraints help define the boundaries within which a project must be completed. In the given options, the customer requirements is NOT a project constraint, as it represents the goals and expectations set forth by the customer, rather than a limitation or condition that must be met.