| ISO | SMMD | Description |
| File Identifier | mdFileID | The unique identifier for a metadata file |
| Language | mdLang | The description language of metadata |
| Identification Info | dataIdinfo | The data basic information |
| Data Stamp | mdDateSt | The date of the metadata creation |
| Metadata Standard Name | mdStanVer | The standard version of metadata performed |
| Contact | mdContact | The organization that creates and manages metadata |
| / | mdchar | The character encoding standards for metadata |
| / | mdstanname | The standard name of metadata |
| / | dqInfo | The data quality information |