By Fred Schenkelberg
Once a product is launched it’s time to understand how the product is performing. The design is done, the assembly process is working, now we can focus on answering the question: is the product hitting reliability targets or not?
Thus, we do field data analysis.
The basic process is to gather data, clean the data as best we can, conduct some form of analysis and determine if the product is meeting reliability targets or not. Are the reliability estimates accurate, how can we make better estimates next time? Are all the failure mechanisms expected, or are we being surprised by previous unknown failure mechanisms?
The analysis is more than a statistical exercise. It relies on a fundamental understanding of the product, desired business objectives, failure analysis, customer perceptions of failure, and common sense. Let’s talk about what you should be doing as you monitor the reliability performance of your product after launch.