| DC_Data |
| Logical Entity Name | DC_Data |
| Default Table Name | DC_Data |
| Definition | Coefficients of a response |
| DC_Data Attributes |
| Attribute/Logical Rolename | Domain | Datatype | NULL | Definition |
| key |
NUMERIC(8, 0) | NO | This attribute denotes a unique identifier for a response (digital coefficients) | |
| row_key |
NUMERIC(8, 0) | NO | Row key for responses | |
| type | VARCHAR(1) | YES | This attribute denotes whether a value is associated with a numerator/denominator | |
| coefficient | FLOAT | NO | The numerator/denominator coefficient value | |
| error | FLOAT | YES | This attribute denotes the numerator/denominator error |
| DC_Data Keys |
| Key Name | Key Type | Keys |
| DCD00 | PrimaryKey | key, row_key |
| DC_Data Relationships |
| Parent Relationships: |
| Entity Name | Type | Cardinality | Business Name | VerbPhrase | InversePhrase | Foreign Keys | Is Supertype |
| DC | Identifying | One To Zero or More | key | NO |
| Child Relationships: |
| Entity Name | Type | Cardinality | Business Name | VerbPhrase | InversePhrase | Foreign Keys | Is Subtype |
| DC_Data Check Constraints |
| Check Constraint Name | CheckConstraint |
| DCD01 | row_key >= 0 |
| DCD02 | type IN ('P','Z','N','D') |