Process maps provide a significant level diagram of an organization’s business processes and Business Process Maps are techniques that are used as tools to boost the organization's performance and upgrade the efficiency. This paper proposes a methodology, integrating the Deming's Plan-Do-Check-Act (PDCA) cycle and Business Process Maps scope. The utilization of the suggested method is validated through an undertaking of a research-based case study on creating New Product Introduction (NPI) process maps. The effects of the case study determine that the projected PDCA-based approach to deal with Business Process Maps will be a compelling option to show the perceivability of end-to-end processes.