background: the aim of this study is to develop a new ergonomics chisel based on user centered design approach and to evaluate the effectiveness for reducing awkward posture using catia software for simulation analysis. methods: respondents were selected using purposive sampling – age 18 – 49 years old, men, experience using chisel (>1 month). a set of questionnaire were used to interview worke...

We describe ANGELINA-5, a new iteration of the ANGELINA framework for investigating and building software which automates the process of videogame design. ANGELINA-5 is the first automated game design tool that produces 3D games. We outline here the system’s structure, the challenges inherent in building an automated game designer in a modern game engine, and we discuss the future research dire...

This paper presents a model for the simulation of the impact of projectiles of high kinetic energy on light-weight ceramic/metal armours. The work was financed jointly by the Defence Ministries of Spain, Italy, Holland and Denmark as part of a project between nations for the development of tools for the design of this type of armour. The model consists of a series of differential equations inco...

railway service terminals are the places of a railway network usually equipped with costly technology based on highly complicated technological procedures demanding a high degree of coordination and control skills. design of these systems and the organization of their operation should facilitate reaching to the required capacity together with high quality of service processes as well as minimal...

The requirements of system reflect the needs of the customer. Specification of requirements at different levels of abstractions is therefore an important part of system design. Formalism in part of system design is necessary to avoid ambiguity and provide precision. Petrinet is a design tool which has proven to be very promising in this aspect. This paper deals with the application of petrinet ...

Cognitive theories of 3D shape decomposition have posited simple volumetric primitives (Geon Structural Description or GSD). In this work, we adapt these Geon models for 3D holistic shape design and present a methodology for evaluating holistic aspects of 3D shape, such as aesthetics, via user-interactive optimisation. The conceptual design space is defined through a set of constraints on the p...

The design of games can be an unfortunately indirect endeavour: the designer’s objective may be to present the player with a particular set of possible experiences, or playspace, but what the designer actually creates (i.e. the game) is instead an artifact intended to produce the desired playspace only upon interaction. In this work we develop both a general framework and specific implementatio...

This paper describes an approach that enables a computeraided design tool to learn conceptual knowledge as it is being used, and as a consequence adapts its behaviours to the changing environment. This allows the tool to improve the effectiveness of designers in their design tasks over time. Design experiments evaluate the effectiveness of this prototype system in recognizing optimization probl...

We describe the development of a tool called MDM for the management of multiple models and the translation of database schemes This tool can be at the basis of an integrated CASE environment sup porting the analysis and design of information systems that allows di er ent representations for the same data schemes We rst present a graph theoretic framework that allows us to formally investigate d...

Object-oriented database design usually starts with object-oriented modeling of a database application, followed by transformation into an object-oriented data model for implementation. In this paper, we propose an object-oriented database design methodology. First, we present a conceptual model called the Integrated Object-Process model (IOP model). Then, we give modeling steps and guidelines ...