Evolutionary Multi Criterion Optimization : Second International Conference EMO 2003 Faro Portugal April 8–11 2003. Proceedings This book constitutes the refereed proceedings of the Second International Conference on Evolutionary Multi Criterion Optimization EMO 2003 held in Faro Portugal in April 2003. The 56 revised full papers presented were carefully reviewed and selected from a total of 100 submissions. The papers are organized in topical sections on objective handling and problem decomposition algorithm improvements online adaptation problem construction performance analysis and comparison alternative methods implementation and applications