| No | Word | Definition |
| 1 | Database Normalization | Normalisation is an approach in database design which analyzes database tables in order to get a concise and organized database structure. A table is normalized if it doesn’t contain redundancy, it doesn’t cause maintenance problems and it accurately represents the data required. |
| 2 | First Normal Form (1NF) | A table is in 1NF if doesn’t contain any multi-valued attributes. |