For refinery upgrades, revamps and modernizations; the need to utilize the latest state-of-the-art technologies to (1) reduce cost while increasing the efficiency, safety, and accuracy of the engineering design and modeling process; (2) achieve the refinery owner’s modernization and throughput objectives, and (3) minimize process disruptions, is as critical as ever as refineries in many parts of the world begin to age. Modernisation programs are particularly time sensitive and can be disruptive to a facility’s operation and as such, need to be done as quickly, safely, and cost-effectively as possible while attaining the facility and process gains demanded.