This activity is used to set the contract baseline. To make sure we keep track of the sub contract values, on which the sub contract was agreed, we can take a snapshot of the sub contract once it's been agreed with the supplier.
To be able to compare the initial contract baseline with the invitation to tender baseline and 
the current sub contract, it is important that we set the contract baseline once 
the sub contract has been agreed with the supplier. This is especially important 
when there is a need to document what was originally agreed upon. It will in addition 
be useful when having to do changes to the sub contract after it’s been agreed.
Once the contract baseline is set, the active revision will be frozen and 
changes to this revision will no longer be allowed.