The purpose of a works contract is:
1° Either the execution, or the design and execution, of works listed in a notice annexed to this Code;
2° Either the execution, or the design and execution, by whatever means, of a work that meets the requirements laid down by the purchaser, who has a decisive influence on its nature or design.
A work is the result of a set of building or civil engineering works intended to fulfil an economic or technical function in its own right.