Process design decision-making procedure

The activity of synthesis occurs throughout a design, from original process conception to construction and operation. Examples are 1) the synthesis of a control system for fixed plant configuration, 2) the synthesis of a start-up procedure for a new process, 3) the selection of materials of construction and 4) the layout of the plant to improve safety. All of these activities involve discrete decision making this aspect is a common denominator of all synthesis activities. 

In chemical engineering, several methodologies and procedures are applied for decision making during design processes. Representative examples include design heuristics, shortcut methods, decision analysis methods, and mathematical optimization. 

Safety considerations permeate all business decision-making, from the concept stage for the design and development of new products, processes, and procedures, through to the disposal of the products made and the facilities in which the products are made. 

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