The purpose of requirements management consist of the analysis, definition and traceability. Requirement management starts with the information sharing between stakeholders with stakeholder requirement process. In this way, involves communication between the project team guidances and stakeholders, and adjustment to requirements changes. System requirement specification provide the software/hardware requirements in order to development team guidance. Software/Hardware Requirements serve as a bridge between system requirements and the various classes of solution requirements. Ecemtag PLM system provide the requirement management with included unique number of each items and for each level. PLM system provide the backward traceability and requirement coverage results to ensure of the reliable product.