ECU file difference analysis – how to read the MT table
In practice, the difficult part is not only detecting differences, but interpreting them. The Modification Table (MT) organises change records so they can be reviewed more systematically before any further technical assessment.
What the MT table shows
- offsets and lengths of detected change blocks,
- confidence values that help assess the strength of a match,
- the matching method used for a given record,
- the link between a table row and the chart visualisation of that record.
How to interpret confidence
Confidence is not a guarantee. It is a supporting indicator that helps separate more plausible records from those requiring more caution. The final decision still belongs to the user after independent review.
Why the chart matters
The chart view helps verify whether compared regions look coherent and whether the pattern of changes makes technical sense in the context of the analysed binary. This is especially useful when a record is not obvious from the table alone.
Safer review workflow
- compare one record with surrounding records in the table,
- check confidence and matching method,
- open the chart when the record needs more context,
- approve only those records that still look technically justified after review.