Nowadays, the environment becomes a major issue in our society. It gives rise to regulations, market demand and stakeholder’s pressure which are concerning companies. These latter have to reduce the negative impact of their new product by eco-design and adopting a continuous improvement for their existing product portfolio. To do so, environmental assessment system is needed. Life Cycle Assessment (LCA) is the most known and recognized. However, this method is complex, requires significant resources and a large amount of accurate data. We propose a methodology to connect a simplified LCA tool with PLM system and ERP to evaluate an entire product portfolio at any time. This will allow design teams to consider the environmental issues in early design phase and gives the companies a global vision of their product portfolio. This methodology is experimented with packaging products of luxury brand, using the Teamcenter PLM system and a Simplified LCA Tool.