Table 2.
Initial list of user contexts.
| Category | User Context | Observable Set of Each User context |
|---|---|---|
| Mobility | Motion pattern | static, slow walking, walking, fast moving |
| Environment | Light intensity | low, normal, high |
| Noise level | low, normal, high | |
| Temperature | freeze, low, comfortable, high | |
| Weather | sunny, cloudy, raining, hazardous weather | |
| Psychology | Level of fatigue | low, medium, high |
| Level of excitement | low, medium, high | |
| Level of nervousness | low, medium, high | |
| Level of depression | low, medium, high | |
| Social | Social contexts | calling, texting/chatting, using App |