Although great advances have been made over the last two decades in the product development process, tradition and experience still govern many design decisions. The need for innovative tools is apparent now more than ever as the design team tries to cope with multiple requirements such as cost, performance, six-sigma quality, styling, packaging, safety, durability, environmental impact, etc. A...

Metamodeling approach has been widely used due to the high computational cost of using high-fidelity simulations in engineering design. Interpretation of metamodels for the purpose of design, especially design under uncertainty, becomes important. The computational expenses associated with metamodels and the random errors introduced by sample-based methods require the development of analytical ...

This paper investigates the problem of local surface reconstruction and best fitting for planar surfaces from unorganized 3D point cloud data. Least Squares (LS), its equivalent Principal Component Analysis (PCA) and RANSAC are the three most popular techniques for fitting planar surfaces to 3D data. LS and PCA are sensitive to outliers and do not give reliable and robust parameter estimation. ...

We provide mechanisms that facilitate database design based on a shrink wrap schema. A shrink wrap schema is a well-crafted, complete, global schema that represents an application. We develop the notion of concept schemas as a way to decompose shrink wrap schemas. A concept schema is a subset of an application schema that addresses one particular point of view in an application. To aid in shrin...

Abstract— The design quality holds a decisive influence on success of product. Our work is comprehensive study of software metrics to evaluate quality in the design phase which will be beneficial to find, repair design problems and saves large amount of potential expenditure. This paper evaluates employment of several design methods such as Robust Engineering Design, Failure Mode and Effect Ana...

Loss functions play a fundamental role in every quality engineering method. A new set of loss functions is proposed based on Taguchi’s societal loss concept. Its applications to robust parameter design are discussed in detail. The loss functions are shown to posses some interesting properties and lead to theoretical results that cannot be handled with other loss functions.