It is also called as regression testing, after u debugging 
the appliction u can run it from top to bottom

testing the scripts in batches is called batch testing. in 
WR batch test has only 'call statements 'to the scripts to 
be executed. for this u have to select "run in batch 
mode "in general options

the sequencial execution of more than one test case is 
called batch testing or it is also known test suite

Batch testing means during execution we have to make a 
dependent test cases as a batches. 
ex; 1. insertion of atmcard 
    2. entering the pin number
here if we insert atmcard then only it will ask the pin 
number. after enterin the pin number only it will ask 
whether u want to withdrawl, balance enquiry etc.
then only it will ask from wher i mean from c/ac or saving.
then it will ask how much u want
if u observe here each and every test case is depending on 
the previous test case.
therefore group all these test cases as a batch.
and execution of this batch i mean this dependent test 
cases is called batch testing.

Batch test is used for test the entire application from top 
to bottom before going to production.