This slide presentation outlines Structured Testing as a methodology that uses standardized programming and testing procedures to efficiently demonstrate compliance with Standards, and accuracy of I/O addressing parameters from the PLC code to HMI data links prior to field installation. Testing is based upon: uniform project programming standards; clear / quantifiable test objectives; and, dynamic testing in safe, stable environments. CDM developed structured testing to create project efficiency for a complex control system implementation, to reduce down-time, errors, and other problems in Automation strategy implementation, to integrate into existing On-Line systems with minimal scheduled plant interruptions, and to prevent unintentional process interruptions. The presentation outlines topics that cover: automation upgrade overview and issues; key components of the structured solution; developing programming standards; tag naming standards; Register Mapping Standards - Numbering Breakdown; PLC Programming - Register Standards; PLC Programming Organization Standard; HMI Animation Standards; The Structured Solution - Develop Standard Testing Procedures; Benefits of structured testing approach; and, lessons learned. Includes tables.