Audit area is divided into five areas according to characteristics of the lottery ticket printing work.

- Production control defines an area that must be commonly applied to printing control, computation control, security control, and quality control.

- Computation control is an area to check computing aspects, such as game data generation, interaction between production facilities and game data, and an inspection function.

- Security control is an area to check security in computation and physical security.

- Quality control is an area to inspect products and a production process and check a quality control process.