4) Choose the correct purpose of Design Interface: [3.3.1 Recognize the importance of the Design Interface Integration Logistics Support element.] Ensure that logistics support considerations are part of the design process and that the system design is fully supported by the Integrated Product Support elements Ensure that all maintenance personnel have support material that is usable and readable Ensure that the end design documentation is usable by all potential stakeholders Ensure that the design process follows the guidelines put forth in the maintenance concept