This paper classifies important nature analogic heuristics, such as Genetic Algorithms, Evolutionary Strategies, Simulated Annealing, and Tabu Search. Their central elements are compared by means of the descriptive A-R-O Model. It is shown how components of the procedures can be successfully interchanged, so that hybrid heuristics and their high potentials become available for future use. A development framework, called the Sever Steps of Development, that allows structured design of these methods and their hybrids is offered.
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