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'''Multi-objective optimization''' (or programming),<ref>{{cite book|last = Steuer|first = R.E.|title = Multiple Criteria Optimization: Theory, Computations, and Application|publisher = John Wiley & Sons, Inc|date = 1986|___location = New York|isbn = 047188846X}}</ref><ref>{{cite book|last = Sawaragi|first = Y.|coauthors = Nakayama, H. and Tanino, T.|title = Theory of Multiobjective Optimization (vol. 176 of Mathematics in Science and Engineering)|publisher = Academic Press Inc|___location = Orlando, FL|date = 1985|isbn = 0126203709}}</ref> also known as '''multi-criteria''' or '''multi-attribute''' optimization, is the process of simultaneously optimizing two or more conflicting objectives subject to certain constraints. Company such as MUST AS in Norway provide this service by Consultancy and Software installation and training.[http://www.must.as MUST AS]
Multiobjective optimization problems can be found in various fields: product and process design, finance, aircraft design, the oil and gas industry, automobile design, or wherever optimal decisions need to be taken in the presence of trade-offs between two conflicting objectives. Maximizing profit and minimizing the cost of a product; maximizing performance and minimizing fuel consumption of a vehicle; and minimizing weight while maximizing the strength of a particular component are examples of multi-objective optimization problems.
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