| TTVisitationRegistrationHistoryID | 
                                                primary key | 
                                            
                                            
                                                | TTVisitationRegistrationID | 
                                                foreign key | 
                                            
                                            
                                                | TTVisitationRegistrationContactID | 
                                                foreign key | 
                                            
                                            
                                                | TTVisitationContactTypeID | 
                                                foreign key | 
                                            
                                            
                                                | ReasonDescription | 
                                                Reason description | 
                                            
                                            
                                                | RegistrationDate | 
                                                Interviewdate | 
                                            
                                            
                                                | Created | 
                                                the creation date | 
                                            
                                            
                                                | DisplayOrder | 
                                                a datetime field for ordering | 
                                            
                                            
                                                | tblUsersID | 
                                                a user who created | 
                                            
                                            
                                                | Corrected | 
                                                Timestamp for the correction | 
                                            
                                            
                                                | CorrectionUserID | 
                                                The user who corrected | 
                                            
                                            
                                                | ParentTTVisitationRegistrationHistoryID | 
                                                A parent id of visitation registration contact history. Null if not relevant. | 
                                            
                                            
                                                | CorrectionText | 
                                                The reason for the correction | 
                                            
                                            
                                                | CorrectionAuthorityID | 
                                                The authority that made a correction. Null if not relevant. | 
                                            
                                            
                                                | TTCommonAuthorityId | 
                                                foreign key | 
                                            
                                            
                                                | TTVisitationCaseID | 
                                                Primary or foreign key | 
                                            
                                            
                                                | IsFirstInContact | 
                                                First registriton in the contact cycle 1 = Yes,  0 = No | 
                                            
                                            
                                                | UnemploymentRegionOfficeID | 
                                                foreign key with TTCommonAuthorityTypeID=6 | 
                                            
                                            
                                                | TTVisitationInterviewTypeID | 
                                                foreign key |