MATES, a 3D-CAD application software developed by Mitsubishi Heavy Industries, LTD., permits us to determine the details in layout of ship's main components, including the hull structure and piping systems, in an integral manner. MATES that can produce precise information has been incorporated into an integrated production system that enables an automatic output of NC data for cutting material into shape. MATES can provide a complete set of 3D graphical information, so that the former design work requiring our design staffs to create and manage a numerous number of 2D-CAD drawings has been reduced. Our two vertical-circulation flow tanks made of stainless steel, since 1986, have contributed to reducing the time and cost in estimating and determining the propulsive and maneuvering performance in each of new hull form R&D activities. Our TESS series ships are also a result obtained using these experimental tanks. TESS52 hull form was developed using a combination of experiments using the above mentioned tanks and simulations using a CFD (Computational Fluid Dynamics) application software. CFD (Computational Fluid Dynamics), a numerical analysis tool making full use of the recent computer technologies to simulate various propulsive and maneuvering performance parameters, has relieved us from the demanding work in determining ship's performance Out present CFD applications, improved through our continuing efforts for tens of years, and the circulation flow tanks as well, have reduced the lead time and cost for developing new hull forms. In May 1998, we obtained LRQA's ISO9000 Quality System Certificate. And, we passed the examination for renewing the certification in June 2001. To maintain the certificate, the conformance of our quality system to the ISO9000 requirements must be verified through internal audits at intervals of twice a year, and LRQA's surveillance. Our quality policy governing the quality system activities throughout the company is to "supply reliable products to the satisfaction of customers." The ISO9000 based quality system contributes also to the building of TESS series ships so that "customer satisfaction" can be assured. FEM (Finite Element Method) is an approximation method for studying a physical system of hull structure by breaking it into discrete elements - plates and frames - interconnected at discrete node points. The recent development of computer technologies has facilitated the spread of FEM-based structural analyses, and has allowed us to calculate, with accuracy, the stress acting on various parts within a ship's entire body at a time. The reliable calculation tool is now imperative for evaluating the ship's local and overall strength. Figure 1 shows an example of FEM analysis model for a cargo hold part of 52000 tons bulk carrier. Figure 2 shows an example of zoomed-in view of FEM analysis result.