| Attribute | Type | Defined By |
|---|
| item_number | INTEGER | structural_frame_item |
| item_name | label (STRING) | structural_frame_item |
| item_description | text (STRING) | structural_frame_item |
| top_or_bottom_edge | top_or_bottom (ENUM) | feature_volume_prismatic |
| start_or_end | start_or_end_face (ENUM) | feature_volume_prismatic |
| original_face | BOOLEAN | feature_volume_prismatic |
| left_or_right_hand | left_or_right (ENUM) | feature_volume_prismatic_flange_notch |
| flange_notch_length | positive_length_measure_with_unit (ENTITY) | feature_volume_prismatic_flange_notch |
| flange_notch_width | positive_length_measure_with_unit (ENTITY) | feature_volume_prismatic_flange_notch |
| flange_notch_radius | positive_length_measure_with_unit (ENTITY) | feature_volume_prismatic_flange_notch |