Information Technology Reference
In-Depth Information
4.
We then write this into the first four characters of the string:
2008IS78901234567890USD19.95901234567890
5.
then you calculate a 32-bit CrC value for the entire 40-character-long string
and hex it. the CrC value for our string is:
C5601867
6.
the CrC value is then appended to the end, to create a 48-character-long string,
looking like this:
2008IS78901234567890USD19.95901234567890C5601867
7.
and this is the string that you should encrypt with aes. a 16-character-long
encryption key like the following:
DENNISRMORTENSEN
will result in an encrypted and hexed string like this:
8E14F3D8742B2216269F2D7CBED00819C29D3B6D99E201F0DFB0FF87451C5FEC3FEED38
FF4327F40215EF5DA5353876B
53
this is the value you would use in the
AMOUNT
variable:
var ACTION='01';
var AMOUNT= “AES1:8E14F3D8742B2216269F2D7CBED00819C29D3B6D99E201F0DFB0FF
87451C5FEC3FEED38FF4327F40215EF5DA5353876B”
version 5
YWATracker.setAction(“01“);
YWATracker.setAmount(“AES1:8E14F3D8742B2216269F2D7CBED00819C29D3B6D99E20
1F0DFB0FF87451C5FEC3FEED38FF4327F40215EF5DA5353876B”);
Long-winded, yes? Worth it? in a situation where you would not want to dis-
close your revenue data, surely! now on to something a bit more down to earth: setting
up fixed funnels for analysis.
Creating Scenarios for Funnel Analysis
traditional funnel analysis is called scenario analysis within Yahoo! Web analytics,
which provides two types of scenario analysis: predefined scenarios and ad hoc scenarios.
i will discuss predefined scenarios here and leave the remainder of the discussion
for Chapter 10, “distinctive reports and Usage,” where i will be discussing how we
can use scenarios for in-depth funnel analysis and what kind of insights we will be get-
ting from it.
i bring up scenario analysis at this point because it is common to see web analyt-
ics software require you to append the tracking code with funnel step variables in order
to set up the funnel.
