| Name | Description | Type | Package | Framework |
| ProgressCountFeedback | Feedback object to carry progress count values to client. | Class | wt.feedback | WindChill |
| StatusFeedback | Feedback object to carry status messages to client. | Class | wt.feedback | WindChill |
| WTContextUpdate | Feedback object to carry updates to client's WTContext object. | Class | wt.feedback | WindChill |