Hi, not the easiest, it's hard untangling and identifying what each service provides specifically xx
http://www.silkysteps.com/forum/showthread.php?t=13349
http://www.silkysteps.com/forum/showthread.php?t=14937
http://www.silkysteps.com/forum/showthread.php?t=12788
If you enter words from the assessment criteria or unit numbers/letters into the
search page other threads will be found that may help further.
Best wishes xx