Foreword. Topology Design of Structures, Materials and Mechanisms - Status and Perspectives; M.P. Bendoe. MIP: Theory and Practice - Closing the Gap; R.E. Bixby, et al. On the Role of Natural Level Functions to Achieve Global Convergence for Damped Newton Methods; H.G. Bock, et al. Computational Experience with a Parallel Implementations of an Interior-Point Algorithm for Multicommodity Network Flows; J. Castro. Modelling the Behavior of Systems: Basic Concepts and Algorithms; T. Cotroneo, J.C. Willems. Lipschitzian Stability of Newton's Method for Variational Inclusions; A.L. Dontchev. SQP Methods for Large-Scale Nonlinear Programming; N.I.M. Gould, P.L. Toint. Algorithmic Implications of Duality in Stochastic Programs; J.L. Higle, S. Sen. A Model which Integrates Strategic and Tactical Aspects of Forest Harvesting; A. McNaughton, et al. Optimization of Chemical Processes Under Uncertainty; G.M. Ostrovsky, et al. Numerical Solution to the Acoustic Homicidal Chauffeur Game; V.S. Patsko, V.L. Turova. Application of a Micro-Genetic Algorithm in Optimal Design of a Diffractive Optical Element; S. Rudnaya, F. Santosa. Semidefinite and Lagrangian Relaxations for Hard Combinatorial Problems; H. Wolkowicz. Recent Developments in Interior-Point Methods; S.J. Wright. Other Papers that were Presented at the Conference.