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The Run Length constraint is a way
of specifying the minimum and maximum number
of consecutive units with a certain feature
- such as a metallic shade. For instance,
the user may want that the run length of cars
with a metallic shade should be a minimum of
2 and a maximum of 7.
Let us compare the charts of a one pass sequence
and a Optessa MLS sequence in the following charts:
One Pass Sequence
(X- axis = Run length or number
of consecutive units, Y-axis = Number of times
a run length occurs in the sequence)
The one pass method fails to observe the run
length constraint, and there are clear violations
in the sequence generated by that method. Run
lengths of up to 20 metallic shade units can
be seen in the sequence above.
Optessa MLS, on the other hand, produces a clean
sequence with no violations: There is no metallic
shade run length less than 2 or greater than
7.
Optessa MLS Sequence
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