mODa 6 — Advances in Model Oriented Design and Analysis : Proceedings of the 6th International Workshop on Model Oriented Design and Analysis held in Puchberg Schneeberg Austria June 25–29 2001 The volume contains the proceedings of the 6th Workshop on Model Oriented Design and Analysis within a series of workshops that initially had the purpose of bringing together leading scientists from Eastern and Western Europs for the exchange of ideas in theoretical and applied statistics with special emphasis on experimental design. The participants of these workshops have developed into a community with a range of common interests that are centred around the theory and applications of optimum design of experiments. In addition to this the volume contains a series of special papers on topics from medical and pharmaceutical statistics. Trend free Repeated Measurement Designs Minimax Optimal Designs for Nonparametric Regression — A Further Optimality Property of the Uniform Distribution Optimization of Monitoring Networks for Estimation of the Semivariance Function A optimal Chemical Balance Weighing Designs with Diagonal Covariance Matrix of Errors Replications with Gröbner Bases Extracting Information from the Variance Function: Optimal Design Model Validity Range in Multicentre Clinical Trials Two Models of Nonadaptive Group Testing for Designing Screening Experiments Optimal Designs for a Continuation ratio Model Bayesian Interpolation Schemes for Monitoring Systems Optimality of the Wald SPRT for Processes with Continuous Time Parameter Efficient Paired Comparison Designs for Utility Elicitation Optimal Design for the Testing of Anti malarial Drugs Optimal Adaptive Designs for Delayed Response Models: Exponential Case Non D optimality of the Simplex Centroid Design for Regression Models Homogeneous of Degreep New Upper Bounds for Maximum Entropy Sampling Residuals Asymptotically Optimal Sequential Discrimination between Markov Chains Optimum Experimental Designs for a Modified Inverse Linear Model Permutation Tests for Effects in Unbalanced Repeated Measures Factorial Designs The Influence of the Design on the Breakdown Point of L1 type M estimators Analytical Properties of LocallyD optimal Designs for Rational Models Understanding Aliasing Using Gröbner Bases AverageD optimum Design for Randomly Varying Experimental Conditions Constrained Bayesian Optimal Designs for Phase I Clinical Trials: Continuous Dose Space Trend Robust and Budget Constrained Optimum Designs Minimax Designs for Logistic Regression in a Compact Interval Sensor Motion Planning with Design Criteria in Output Space Quality Improvement of Signal Dependent Systems Recursive Algorithm for Digital Diffusion Networks and Applications to Image Processing List of Authors List of Referees.