SAP Testing-beginner

Hi friends,

I am very new to testing concepts.I am familiar with abap concepts very recently,Wanted to learn testing also.

colud some one please guide to learn the techinuques in SAP testing from the scratch.

I have fwe basic questions tooo....

1.what is test script

2.what is test plan

3.what is test cases

4.what is automated test scripting

5.what are automated test tool.

Friends, kindly guide me to walk through this environment.

Thanks in Advance

Rinky