You mean aligning. Scaling is used by the UAC to determine ATARs, not the BOSTES to determine marks.
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Aligning is the process of setting benchmarks for the bands based off your raw marks.
e.g. In the 2016 Physics exam, you needed a raw mark of ___ to get a band _
80 to get a band 6
61 to get a band 5
50 to get a band 4
What happens is, your mark is adjusted according to the alignment.
The 80 becomes a 90
The 61 becomes an 80
The 50 becomes a 70
Which are, as you would hopefully know, the cutoffs for the bands after alignment.