Table 3. Object hierarchy for 2D Compass
| Game Object | Definition |
| 1. Camera | Camera Group |
| 1.1 Object Camera | Unity Object Camera |
| 1.2 AR Camera | Device Camera |
| 2. AR Camera Texture | Texture Group |
| 2.1 Camera Texture | Device Camera Texture |
| 3. Sensor | Sensor Group |
| 3.1 GPS | GPS Sensor |
| 4. GUI | GUI Group |
| 4.1 Compass Controller | Controller Object Group |
| 4.2 Compass | Compass Object Group |
| 4.3 Bulletin | Bulletin Object Group |
| 4.4 Error | Error Object Group |
| 4.5 Spot_info | Spot_info Group |
| 5. Spot Group | Spot Group |
| 5.1 Spot | Spot |
| 6. Plane | Plane |
| 6.1 Object Group | Object Group |
| 7. GM | Game Manager |
| 8. Database_info | Database |
| 8.1Spot Group | Database Spot Group |
| 1) Spot | Database Spot |