Diagnose the problem and validate
Talk to the people who know your product and process in detail (f.e. designers, operators, maintainers) and spend time line-side to gather information. Use the following tools to diagnose the problem:
- Root cause analysis
- Failure modes
- Effects analysis
- Statistical techniques
Get an agreement on the validity of the diagnosis and seek buy-in from the people who will make the changes and live with the results. Afterwards Verhaert will advise you whether or not you should implement a design change to the product and/or process. Some changes will be complex and involve multiple parties. Verhaert manages your project while protecting the design intent.