How default values for fields are set in the object business rules Initialization rules section. Also explain how to set separate default values for each form in the business object. ie: Source = Phone for regular forms and Source = Self Service for Self Service forms
When you first click on the business rules tab and expand the initialization rules, the values displayed are for the Default form (general rules)
In this section the Source default value is set to Phone:
Each form can have its own set of initialization rules. See the incident.source field. The default value is "phone" But if you choose the Incident.WebSelfService.New form the source default is set to Self Service.
See that Source and Status are in red and have different values than the Default default value