FAT readiness
One of the problems that suppliers face is how to operate the simulated plant. In many cases, operating procedures (especially for greenfield projects) will not be available. To avoid this, as mentioned earlier, the best practice is to involve the contractor's operators in the PreFAT. They are the best to perform plant operations on the simulated process. Similarly to the PreMAT, some items in the PreFAT, if they are recorded as passed, could be claimed as done, and there's no need to repeat test them in the FAT if the contractor agrees to that. For example, in the PreFAT if the supplier and contractor representative has gone through the OTS process model scope to be able to perform the operating procedures, then this activity can be signed off and there's no need to do that again in the FAT. This is a win-win situation for the supplier and the contractor. The supplier will have the expertise needed in the PreFAT and the contractor will have a good simulator...