My qs is for Gurus in Apps

I was able to install 11.0.3 on 2k standalone.(Default)
I was able to login using operations a/c for VD11
I can switch between all three environments
PROD, TEST, VD11

Objective
to work on sample vision database (GL, AR, AP, FA) Functional Side Implmentation
My qs >>>>to achieve what I want to do
DO I need to install and configure workflow
Do I have to configure Oracle Web Server 3.0.1
like DAD configuration, PL/SQL cartridges registration to work on Vision application.
Can I leave everything as default and start from there

I do understand That GL is the base module on all financials any tips or tricks to start from there.

Any specific tasks need to be performed as SYSADMIN to make Vision database available for proper training usage.

Any tips would be greatly appreciated.
Any body with workflow installation steps for a standalone m/c
Is it worth it to install and configure workflow????

Please advise and help

Regards