| Name | Description | Type | Additional information |
|---|---|---|---|
| Id | globally unique identifier |
None. |
|
| WorkerId | globally unique identifier |
None. |
|
| CourseId | globally unique identifier |
None. |
|
| CertificateNo | string |
None. |
|
| DateAttended | date |
None. |
|
| ValidUntil | date |
None. |