The classical concept of quality management in weapon systems is perceived as limited because it focuses primarily on fulfilling user requirements. However, satisfying user requirements should be considered the baseline of quality management, while quality managers should emphasize conducting research to proactively improve functions and performance. The Quality Control Gate review system is designed to ensure the completeness of design and manufacturing readiness as well as massproduction feasibility by preventing quality issues from being propagated to subsequent phases of system development. Nevertheless, it presents inherent limitations, including insufficient identification of feedback elements from the operational phase and inadequate systematic quality-planning activities prior to project initiation. This study aims to address these limitations by defining the key activities and input-output elements at each stage, beginning from the establishment of a basic system development plan before project initiation. Furthermore, practical case studies are presented to devise a method for providing the quality history from the operational phase throughout the system lifecycle.