**TER Introduction for Amazon Suppliers**\\

**What is TER?**\\

TER Stands for Translation Edit Range. It is a way to measure the edit distance of a post-
edited segment. The TER score can be easily and accurately converted into a weighted word to calculate fair financial compensation for the work.\\

**How is it calculated?**\\

Depending on the complexity of changes, the weight of an edit can be 25% (no edit needed, so 25% of the no-match rate is paid to review the segment) or 100% (a big effort, so the full rate applies for that segment). The complete TER effort table is as follows:\\
{{:info:tab1.png|}}

**Does it apply to all projects?**\\
No. TER will be used as the way to calculate payments only for MTPE work and only for MT’ed segments.
Only 0-75% TM matches (new words) are machine-translated. This means that you will still work on segments with TM matches between 76-100%.\\
To summarize, your compensation will be calculated from:\\

1 The weighted wordcount for 76-100% TM matches (calculated as usual) and\\
2 The weighted TER score (calculated as per the table above) for 0-75% TM matches. \\

**When will TER be calculated?**\\
Naturally, a TER score can only be calculated after the post-editing work is done. For 
estimation purposes, we will provide you with our historical MT quality TER reports so you can plan and budget accordingly.