Hi Gary,
I would say you have to know chapter 6 in order to know how it will works. Emergency Service is a good demo, and now it was a web task client with uses smart tasks, so that you can see how it can help it. The example can be found at:
https://github.com/Salaboy/emergency-service-drools-app/tree/master/emergency-service-taskslists-ui-web
If you want more details, please let me know.
Thanks,
Demian