Before the contract for the construction of the building between the employer and the construction contracting business, there are some actions that the employer should do: Preparation of the project, Determination of the cost of the discovery, Determination of the pricing method, Determination of the bidding method, The bidding of the project is submitted by the contracting enterprises. . The bids submitted are evaluated by the employer, and the contract is signed with the construction contracting company that offers the most suitable bid and the construction begins.