1. After the qualification examination, engrave and seal the database of qualified buyers.
2. Before the lottery, the development enterprise randomly informs some families who buy houses as representatives to supervise the lottery.
3. When the lottery is played, the notary checks the sealed state of the special computer and CD-ROM, draws lots from the representatives of the family who bought the house, selects 6 people to openly draw the seed number, inputs it into the computer, and starts to play the lottery.
4. After the completion of the lottery, the notary will publicize the lottery results on the spot, burn the CD, read the notarial certificate, and seal the computer and the result CD.