| dataid |
| Base Entity | mecobject |
| Attribute Name | dataid |
| Logical Rolename | |
| ColumnName | dataid |
| RoleName | |
| Definition | Object type |
| Note | Range: dataid >= 0 0 = text email 1 = gif of best solution plot 2 = gif of VR plot 3 = text of VR |
| mecid |
| Base Entity | mecobject |
| Attribute Name | mecid |
| Logical Rolename | |
| ColumnName | mecid |
| RoleName | |
| Definition | Mechanism identification. Each mechanism is assigned a unique positive integer which identifies it in the database |
| Note | Range: mecid > 0 |
| mimetype |
| Base Entity | mecobject |
| Attribute Name | mimetype |
| Logical Rolename | |
| ColumnName | mimetype |
| RoleName | |
| Definition | Image type |
| Note | Range: mimetype = {0 | 1 | 2 | 3} 0 = text/plain 1 = image/gif 2 = image/gif 3 = text/plain |
| data |
| Base Entity | mecobject |
| Attribute Name | data |
| Logical Rolename | |
| ColumnName | data |
| RoleName | |
| Definition | Object described by dataid/mimetype |
| Note |
| meta |
| Base Entity | mecobject |
| Attribute Name | meta |
| Logical Rolename | |
| ColumnName | meta |
| RoleName | |
| Definition | Metadata for object, i.e. filename=email.txt |
| Note | Range: Any free-format string up to 128 characters |