Version 15.1 User’s Manual

Understanding The Impact Of Changes (cont)
Creating the Before vs. After Comparison Parameters—Multiple Period
Next, lets look at a real life example where the customer is doing a multiple period analysis. In
this example, the customer added disk to their system.
The goal is to a before vs. after analysis to see if the disk environment had a positive impact to
the system. Here we show a multiple period comparison at the DATE level:
In the above example, we simply split the trend line by right clicking
on a desired location and selecting “split trend line”.
Upon splitting the trend line, the Before vs. After parms have been set
On the next page, lets see how we begin the multiple period analysis
Version 15 User Manual Page 192 Oct 2011