What does traceability mean?

Tracing back to the source is to look for a new birthplace upstream, which is a metaphor for looking for historical roots upwards.

Knowledge about traceability:

1, pronounced as sê yuá n

2. Composition:

Verb-object type: tracing back to the source

3. Example:

(1) Why do you want to trace the source?

(2) Digital watt-hour meter is a necessary equipment, which is widely used, so it is very necessary to realize the traceability of values.

This story can be traced back to many years ago.