8.8

sequence, and each pen is tagged (with a label) as being for use with a specific pattern
sequence also. Each morning, as drivers are attributed a route, they pick up the correct
pen and stack of paper that belong to their route before leaving.
Note
It's very important to note here that the Anoto Digital Pen has absolutely no concept of Pattern
Sequences. When "attributing" a sequence to a pen, this is fully on the PReS Workflow side, in the
Capture Database. This means that if a pen is mislabeled or someone picks up the wrong pen, this
pen has absolutely no way to know that it is writing on the wrong paper. more about this in the
Contamination section below.
l Process-Based Sequences: In this case, while documents are still printed and their
route number attributed to their pattern sequence, the pens do not have this distinction.
However, the docking station where the pens are placed at the end of the day are set to
send the pen's data to a specific process which will only handle processing for that
specific route number. In this case, one physical computer (and, presumably, printer) is
used for each route, and the driver must dock the pen in the proper docking station which
corresponds to his router number, at the end of the day.
As you may have figured out by now, we are still not actually printing more than 20,000
patterns. The only distinction here is that we are re-using patterns in separate "zones" (or, well,
sequences) and as long as pens and pages using capture patterns are not exchanged between
these zones, they act independently with their own 20,000 pattern limitation.
Note
The mobile phone application, "PlanetPress Mobile", which uses Bluetooth communication to
receive pen data and transmit it to PReS Workflow, can still be used with both pattern sequence
methods, as it is the equivalent of a docking station on the web. PlanetPress Mobile was added to
PlanetPress Capture in version 7.4.
Contamination
The single but critical danger with any implementation that deals with PlanetPress Capture is
"Contamination". Basically, contamination happens when an Anoto Digital Pen writes on a
"wrong" document or is docked in the wrong location. This can happen any number of ways
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