calling webmethods in a batch/transaction

[ranga]

>> Does WebService support calling methods in a batch. I have the following
two scenarios:

case1 : say i need to call two webservice methods that do an insert and
update respectively on a database. How do i enclose the 2 calls in a
batch/transaction

case2: say the 2 methods that i want to call in a batch are "get" type of
methods - ie one returns a string and another returns a byte array. But i
want to protect my client agains the risk that one of the methods or both may
not return due to service outage?. How do i handle this situation ?. Do i
need to investigate the exception in each method ?

thanks
ranga