A Customized Lean Six Sigma Approach to Reduce Postpaid Data Discrepancy between It Systems and Telecom Switch

This article presents a process improvement study carried out at a major Indian Telecom service provider based on customized Lean Six Sigma methodologies. The DMAIC (Define, Measure, Analyze, Improve, and Control) project management methodology and various lean tools are utilized to streamline processes, reduce errors and enhance revenue. Data discrepancy between IT systems and Telecom Switch was analyzed before and after the DMAIC cycle. Data discrepancy between these systems was causing billing errors and activation delays. The results indicate that the data discrepancy reduced to 0.42% from 5.1%. This resulted in effective operations and revenue enhancement.