ERD for User Permissions

UserManagement.Companies Primary Key Companies_ID CompanyName UserManagement.Users Primary Key Users_ID Foreign Key FullNames_ID Foreign Key Emails_ID UserManagement.Roles Primary Key Roles_ID RoleName UserManagement.Permissions Primary Key Permissions_ID PermissionName UserManagement.Groups Primary Key Groups_ID GroupName UserManagement.RGroups Primary Key RGroups_ID Foreign Key Groups_ID UserManagement.PGroups Primary Key PGroups_ID Foreign Key Groups_ID UserManagement.PermissionGroups Primary Key PermissionGroups_ID Foreign Key Permissions_ID Foreign Key PGroups_ID Description UserManagement.RoleGroups Primary Key RoleGroups_ID Foreign Key Roles_ID Foreign Key RGroups_ID UserManagement.RoleGroup_PermissionGroups Primary Key RoleGroup_PermissionGroups_ID Foreign Key RoleGroups_ID Foreign Key PermissionGroups_ID EntryTime UserManagement.Permission_DisplayNames Primary Key Permission_DisplayNames_ID Foreign Key Permissions_ID Permission_DisplayName UserManagement.Company_UserRoleGroups Primary Key Company_UserRoleGroups_ID Foreign Key Companies_ID Foreign Key Users_ID Foreign Key RoleGroups_ID