Definition of the fundamentals for the automatic generation of digitalization processes with a 3D laser sensor

1998 ◽  
Author(s):  
Stephane Davillerd ◽  
Benoit Sidot ◽  
Alain Bernard ◽  
Gabriel Ris
Keyword(s):  
Automatic Generation ◽  
Laser Sensor ◽  
Definition Of

Consistency Management in Feature-Based Parametric Design

1995 ◽  
Author(s):  
Ana Sofia Vieira
Keyword(s):  
Parametric Design ◽  
Automatic Generation ◽  
Fundamental Principle ◽  
Consistency Management ◽  
Semantic Constraints ◽  
Evaluation Time ◽  
Feature Based ◽  
Consistent Feature ◽  
Semantic Correctness ◽  
Definition Of

Abstract One of the main problems to be solved in design-by-features is to preserve the semantic correctness of feature-based models. Currently, feature-based parametric design (FbPD) is being used as one of the most powerful approaches for solving this problem. In this paper, a fundamental principle of this approach is introduced. Three aspects stated, are: FbPD deals with functional design primitives, it solves the automatic generation of model variations, and it offers the basis for the development of a mechanism to check the semantic correctness of feature-based models. Several concepts for the definition of semantic constraints are presented. They instigate the classification of semantic constraints in four different categories, based on the constraint evaluation-time, purpose, behaviour, and representation. Sinfonia, a system for feature-based parametric design, is presented as a testbed environment for design-by-features applications. One of its modules, the Consistency Handler, uses the constraint concepts introduced in order to preserve the semantic consistency of the models. Several examples illustrate the different types of constraints. In addition, an algorithm applied for the process of a consistent feature modification is presented.

scholarly journals Generating Collaborative Systems for Digital Libraries: a Model-Driven Approach

2010 ◽  
Vol 29 (4) ◽  
pp. 171 ◽  
Author(s):  
Alessio Malizia ◽  
Paolo Bottoni ◽  
S. Levialdi
Keyword(s):  
Digital Library ◽  
User Interfaces ◽  
Digital Libraries ◽  
Automatic Generation ◽  
Visual Language ◽  
Domain Experts ◽  
Model Driven ◽  
Neutral Models ◽  
Definition Of ◽  
High Level

The design and development of a digital library involves different stakeholders, such as: information architects, librarians, and domain experts, who need to agree on a common language to describe, discuss, and negotiate the services the library has to offer. To this end, high-level, language-neutral models have to be devised. Metamodeling techniques favor the definition of domainspecific visual languages through which stakeholders can share their views and directly manipulate representations of the domain entities. This paper describes CRADLE (Cooperative-Relational Approach to Digital Library Environments), a metamodel-based framework and visual language for the definition of notions and services related to the development of digital libraries. A collection of tools allows the automatic generation of several services, defined with the CRADLE visual language, and of the graphical user interfaces providing access to them for the final user. The effectiveness of the approach is illustrated by presenting digital libraries generated with CRADLE, while the CRADLE environment has been evaluated by using the cognitive dimensions framework.

scholarly journals Personalized Exergames Language: A Novel Approach to the Automatic Generation of Personalized Exergames for Stroke Patients

2020 ◽  
Vol 10 (20) ◽  
pp. 7378 ◽  
Author(s):  
David Vallejo ◽  
Cristian Gmez-Portes ◽  
Javier Albusac ◽  
Carlos Glez-Morcillo ◽  
José Jesús Castro-Schez
Keyword(s):  
Automatic Generation ◽  
Authoring Tools ◽  
Economic Costs ◽  
Community Centers ◽  
Stroke Patients ◽  
Face To Face ◽  
Novel Approach ◽  
Number Of Patients ◽  
Definition Of

Physical rehabilitation of stroke patients is based on the daily execution of exercises with face-to-face supervision by therapists. This model cannot be sustained in the long term, due to the involved economic costs, the growing number of patients, and the aging population. Remote rehabilitation tools have emerged to address this unmet clinical need, but they face the double challenge of motivating patients and ensuring an effective remote rehabilitation. In this context, exergames allow patients to play while performing repetitive therapeutic tasks in a safe and ecological environment. This work proposes the design of Personalized Exergames Language (PEL), a language whose sentences can be processed via software in order to automatically generate exergames. The definition of exergames through PEL, guided by an effective methodology of the design and generation of personalized exergames, will include both game mechanics and the necessary metrics to monitor, guide, and adapt the rehabilitation of each patient. The integration of authoring tools are considered to visually guide the therapist when designing exergames. A study has been carried out with stroke patients and therapists from a hospital and two community centers, in order to evaluate several exergames, automatically generated using PEL, in terms of usability, understanding, and suitability.

scholarly journals Model-driven support for business process families with the Common Variability Language (CVL)

2020 ◽  
Vol 23 (1) ◽  
Author(s):  
Daniel Calegari ◽  
Andrea Delgado ◽  
Leonel Peña
Keyword(s):  
Business Process ◽  
Process Model ◽  
Business Processes ◽  
Qualitative Evaluation ◽  
Automatic Generation ◽  
Model Driven ◽  
Business Objective ◽  
Graphical Tool ◽  
The Common ◽  
Definition Of

To achieve a business objective, organizations may require variants of the same business process that depend on the context in which they are enacted. Several proposals have emerged to deal with the variability of business processes, focused on the modeling of a so-called process family. The proposals try to avoid modeling each variant separately, which implies duplication and maintenance of the common parts. Few of them also focus on automatically deriving a process variant from the definition of a process family, which is a central and complex task. One of these proposals is the Common Variability Language (CVL), which allows representing variability transparently in a host language. This article aims to explore the use of CVL together with the Business Process Model and Notation (BPMN 2.0) for modeling business process families, and the use of Model-Driven Engineering (MDE) techniques for the automatic generation of process variants. We also present a graphical tool supporting these ideas and a qualitative evaluation of the variability approach by using the VIVACE framework.

Open Source LMS Customization

2011 ◽  
pp. 250-263
Author(s):  
Miguel Ángel Conde González ◽  
Carlos Muñoz Martín ◽  
Alberto Velasco Florines
Keyword(s):  
Open Source ◽  
Management System ◽  
Learning Management System ◽  
Automatic Generation ◽  
Added Value ◽  
Learning Platforms ◽  
Learning Management ◽  
Definition Of ◽  
A Company

This paper reflects the possibility of doing adaptations on a learning management system (LMS) depending on the necessities of a company or institution. In this case, ACEM allows the definition of courselevel and platform-level reports and the automatic generation of certificates and diplomas for Moodle LMS. These adaptations are intended to complement all the different learning platforms by contributing added-value features like the generation of customizable diplomas and certificates and reports, which allow the obtaining information about both grades and participation in every activity of a course. All this necessities are not provided by default.

Visual Implement of Virtual Reality Tour Based on VRML

2011 ◽  
Vol 48-49 ◽  
pp. 1351-1357
Author(s):  
Jian Bing Xia Hou ◽  
Jin Tong Rao ◽  
Yuan Li ◽  
Yin Yao
Keyword(s):  
Virtual Reality ◽  
Automatic Generation ◽  
Generation Algorithm ◽  
Performance Quality ◽  
Definition Of

In this paper, a visual solution is presented about virtual reality tour of Web3D based on VRML. After analysis of polyline architectural structure related to tour route, a parametric definition of polyline is given, and a visual editor system of polyline is developed. With our experience on the VR project,the automatic generation algorithm is proposed about the VR tour based on VRML. The application shows that the proposed way can efficiently improve the performance quality of the project.

Automatic robot program synthesis for assembly

Robotica ◽  
1992 ◽  
Vol 10 (2) ◽  
pp. 113-123 ◽  
Author(s):  
H. A. ElMaraghy ◽  
J. M. Rondeau
Keyword(s):  
Error Detection ◽  
Automatic Generation ◽  
Planning System ◽  
Problem Solver ◽  
Task Definition ◽  
Robot Trajectory ◽  
Planning Framework ◽  
Robot Task ◽  
Definition Of ◽  
High Level

SUMMARYThis paper describes a revised version of ROBOPLAN, a goal-oriented robot task planning system for automatic generation, decomposition and execution of high-level robot plans for assembly. It emphasizes its new features, i.e., modularity, formal definition of the task, robust plan synthesis, and execution of each assembly step. A task definition language allows a formal description of the robot universe and the assembly task to be input to ROBOPLAN. The expert task planner is a non-linear backward chaining problem solver, using a goal driven depth-first strategy. The implemented search strategy has been tested in the assembly domain, but it could be used in other domains where planning is needed. The motion planner provides a non-optimal, safe robot trajectory; collision free path planning has not been included yet. A robot executable code is generated for each assembly step and monitored in real time. The error detection and recovery capability of the system is rather limited at present, since no sensors are used. The initial implementation of the system has been tested and evaluated on the assembly of a DC motor. The potential of extending this planning framework to other applications is also discussed.

scholarly journals Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing

Aerospace ◽  
2019 ◽  
Vol 6 (6) ◽  
pp. 71 ◽  
Author(s):  
Francesco Di Caprio ◽  
Valerio Acanfora ◽  
Stefania Franchitti ◽  
Andrea Sellitto ◽  
Aniello Riccio
Keyword(s):  
Numerical Procedure ◽  
Optimization Procedure ◽  
Metal Structure ◽  
Automatic Generation ◽  
Geometrical Model ◽  
Filament Winding ◽  
Metal Composite ◽  
Unit Cells ◽  
Numerical Tool ◽  
Definition Of

This paper introduces a numerical tool developed for the design and optimization of axial-symmetrical hybrid composite/metal structures. It is assumed that the defined structures are produced by means of two different processes: Additive Layer Manufacturing (ALM) for the metallic parts and Filament Winding (FW) for the composite parts. The defined optimization procedure involves two specific software: ANSYS and ModeFrontier. The former is dedicated to the production of the geometrical and FE models, to the structural analysis, and to the post-process, focusing on the definition of the Unit Cells for the modelling of the metal part. The latter is dedicated to the definition of the best design set and thus to the optimization flow management. The core of the developed numerical procedure is the routine based on the Ansys Parametric Design Language (APDL), which allows an automatic generation of any geometrical model defined by a generic design set. The developed procedure is able to choose the best design, in terms of structural performance, changing the lattice metallic parameters (number of unit cells and their topology) and the composite parameters (number of plies and their orientation). The introduced numerical tool has been used to design several hybrid structures configurations. These configurations have been analysed in terms of mechanical behaviour under specific boundary conditions and compared to similar conventional metal structure.

The Compatibility of Service Protocol in Pervasive Computing Environments

2015 ◽  
Vol 719-720 ◽  
pp. 665-668
Author(s):  
Cheng Yuan Yu ◽  
Yi Ying Yin
Keyword(s):  
Pervasive Computing ◽  
Value Added ◽  
Automatic Generation ◽  
Formal Description ◽  
A Algorithm ◽  
Composite Service ◽  
Complex Needs ◽  
Computing Environments ◽  
Definition Of ◽  
Service Protocol

In pervasive computing environments, a single service is often unable to meet the complex needs of users. A composite service is a combination of services to provide value-added services that a single service cannot achieve. Thus, it is important to ensure that services protocol are compatible. This paper provides a formal description of service protocol, a new definition of services protocol compatibility and a algorithm for automatic generation adapter for incompatible services protocol.

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