batch mode is nothing but sequencial execution of a 
dependent test scripts. and we can execute batch tests by 
using call function.

let me know if i'm wrong :)

thank u,

executing a set of scripts at a time like a batch. the 
batch file in WR contains only 'call' statements to the 
scripts
call"c:\...."();

to do batch testing, you have to select 'run in batch mode' 
in general options

calling all the modules is called batch script.
The test scripts which are created for all the modules and 
are stored in a common drive .To execute  all the scripts 
together you need to write a batch script and call all the 
saved scripts and run in batch mode.
tools > general options >run >select run in batch mode > 
click ok.
When the scripts are run in Batch ON mode the test resuts 
will be stored in the main module and in the individual 
module.
When the scripts are run in Batch OFF made the test results 
will be stored only in the main module.