Hi Kiraang,
The link mentioned by you is a good link to perform Oracle dataguard configuration.
http://www.oracle.com/us/solutions/sap/wp-ora4sap-dataguard11g-303811.pdf
Based on the scenarios described you may choose the best suitable for your environment.
Additional useful links are shared for your reference below.
http://docs.oracle.com/cd/B19306_01/server.102/b14239/create_ps.htm#i67520
http://www.slideshare.net/satishbabugunukula/data-guard-architecture-setup
Hope this helps.
Regards,
Deepak Kori