| Relevance | Authority | Quality | Age | Suitability | |||||
| Appropriate | Same topic | AND | High | AND | High | AND | < 2 years | ⇨
|
High |
| Related topic | OR | Medium-high | OR | Medium-high | OR | 2 – 5 years | OR | Medium | |
| Same field | OR | Medium-low | OR | Medium-low | OR | 5+ years | OR | Low | |
| Inappropriate | Unrelated | OR | Low | OR | Low | OR | Older | OR | Unsuitable |
| Reason for rejection |
Unrelated | Low authority | Low quality | Old | Better source available |
