The main point
Compare the complete production result rather than an isolated machine feature. A good decision is supported by representative materials, written limits and a sustained test.
Define the result
List every product and pack. This should be written into the customer requirement so it can be tested rather than assumed.
- List every product and pack
- Set measurable quality limits
- State sustained good output
Identify the hardest case
Use the hardest normal product and format. This should be written into the customer requirement so it can be tested rather than assumed.
- Use the hardest normal product and format
- Include supplier and batch variation
- Record current failure evidence
Compare the complete process
Include feeding, loading, discharge and inspection. This should be written into the customer requirement so it can be tested rather than assumed.
- Include feeding, loading, discharge and inspection
- Allow for cleaning and changeover
- Check the next likely bottleneck
Prove the choice
Run representative samples. This should be written into the customer requirement so it can be tested rather than assumed.
- Run representative samples
- Agree FAT and SAT tests
- Record settings, results and unresolved risks
Continue to Lancing
Send the completed requirement, samples and target output for a machinery review.
