| action_objid | svc_rqst | objid | Internal record number | |
| param_objid | svc_fld | objid | Internal record number | 3 (UNIQUE) |
| param_fld_name | svc_fld | fld_name | FML field name | |
| param_path | svc_fld | path | The database path that defines the field value | |
| param_type | svc_fld | type | 1 = Activation, 2 = Input, 3 = Dependent, 4 = Output, 5 = Output-Async, 6 = Input Constant, 7 = Output Constant | |
| param_field_flags | svc_fld | field_flags | Field creation flags; 0 = create as needed, 1 = always create, 2 = never create | |
| param_focus | svc_fld | focus | 0 = Current focus object, 1 = rqst_inst | |
| showpage_objid | showpage | objid | Internal record number | |
| param_depends_on | svc_fld | depends_on | Used by dependency fields | |
| param_db_attrib_type | svc_fld | db_attrib_type | Attribute type from database; Same as N_Attribute.N_Type | |
| param_target_name | svc_fld | target_name | Schema object name used for Output - Datapath Relation fields | |
| param_value | svc_fld | object_path | For Assignments, the input value | |