# Requirements Management

## How to Create Structure Requirements

| ### What to do:
| Select Start > Requirements > Base Requirements. The Base Requirement mask is opened.
| Search for BAS-900009.
| Select the Structure tab.
| Requirements are build up hierarchically, therefore, new text or structure requirements should be assigned to the base requirement. However, it is possible to build a cross-link to existing requirements. These requirements can be selected by clicking .
| To insert a new structure requirement click the Insert Structure Req. button. The Structure Requirements mask is opened.
| Enter STR-900073 in the Requirement Number field.
| Enter Usability in the Name field.
| To save the entry click . The Structure Requirement mask is closed and the newly created structure requirement is added to the structure of the base requirement.
| Repeat steps 4 - 7 and enter the following values:
Requirement Number | Name
STR-900096 | Energy
STR-900087 | Geometry
| Multilevel Structure:
| Select STR-900073.
| Select the Structure tab.
| To insert a new structure requirement click the Insert Structure Req. button. The Structure Requirement mask is opened.
| Enter STR-900082 in the Requirement Number field.
| Enter Correct Cutting in the Name field.
| To save the entry click . The Structure Requirement mask is closed and the newly created structure requirement is added to the structure.
| Repeat steps 3 - 6 and enter the following values:
Requirement Number | Name
STR-900083 | Preserve general cutting process
STR-900084 | Robustness in Handling
STR-900085 | Environmental conditions