complex value issues into the decision model. Decision analysis can be defined on different and
embedded levels in petroleum exploration and production stages. Decision-making for planning
a petrochemical industry is a difficult task, particularly when decisions are based on Health,
Safety and Environment. Chemical process accidents are often the result of unexpected
interaction between automated process equipment and operators. In the drive to improve safety
and reliability, chemical process facilities tend to rely heavily on automation using sophisticated
instrumentation, computers, and programmable logic controllers to run their plants.