Process-Centric Distributed Collaborative Design Based on the Web

1999 ◽  
Author(s):  
Hyun Kim ◽  
Jae Yeol Lee ◽  
Sung-Bae Han
Keyword(s):  
Engineering Design ◽  
Collaborative Design ◽  
Heterogeneous Computing ◽  
Prototype System ◽  
Web Based ◽  
Design Activities ◽  
Cross Platform ◽  
User Access ◽  
Integrate Design ◽  
The Web

Abstract In this paper, we discuss a distributed collaborative design for embodying concurrent engineering. The concept of a process-centric collaborative design is proposed to progress collaboratively an engineering design. It is implemented in the PEDWorks (Process-centric Engineering Design Workspace) as a prototype system for the Web-based collaborative workspace to integrate design activities in a distributed and heterogeneous computing environment. The PEDWorks has a client/server architecture, which consists of server applications such as a process controller, a design board, a communication server and a CAD server, and the client browsers with a Web-based process-driven user interface. We have conformed to CORBA (Common Object Request Broker Architecture) standard to support interoperability between distributed objects and have used JAVA to support cross-platform and distributed user access to PEDWorks on the Web. PEDWorks enables design teams to define the design process collaboratively, execute it in a distributed environment, share design information and communicate with each other.

Development of a Web-Based Process Planning Optimization System

2004 ◽  
Author(s):  
W. D. Li ◽  
W. F. Lu
Keyword(s):  
Process Planning ◽  
Design System ◽  
Prototype System ◽  
Distributed Design ◽  
Web Based ◽  
Design Models ◽  
Planning Optimization ◽  
Design Activities ◽  
Feature Based Design ◽  
The Web

A Web-based prototype system has been setup for users to carry out visualization-based manipulations and process planning of design models to support distributed design and manufacturing analysis. The process planning module, which has been deployed as services in the Internet, includes four intelligent approaches, and a Tabu search-based approach is explained to illustrate the optimization process. The Web-based system has been integrated with a distributed feature-based design system, and the latter can generate design models and re-represent them in an XML representation based on VRML and attributes of features to provide the input of the former. Through effective utilization of the Web and Java technologies, this system is independent of the operating system, scalable and service-oriented, and can be used by a geographically distributed design team to organize concurrent engineering design activities effectively.

Web-Based Collaborative Design Modeling and Decision Support

1998 ◽  
Author(s):  
Gun-Dong F. Pahng ◽  
Seockhoon Bae ◽  
David Wallace
Keyword(s):  
Collaborative Design ◽  
Communication Protocol ◽  
Integrated Models ◽  
Distributed Resources ◽  
Development Environment ◽  
Web Based ◽  
Java Applet ◽  
Cross Platform ◽  
User Access ◽  
Components Analysis

Abstract This paper presents an integrated but open product development environment for distributed and collaborative design. The web-based framework, called DOME, allows designers to build integrated models using both local and distributed resources and to collaborate by exchanging services. Thus, an integrated model can be created while each participant focuses on their own area of expertise. A design model is created by connecting modules, each of which can represent specific components, analysis capabilities/software, disciplines, or organizations relevant to the problem. The modules interact with each other using service exchanges based upon the CORBA standard communication protocol for distributed objects. The resulting module network forms a concurrent model in which changes propagate through service exchanges. Modules can simultaneously function as both clients (using services from other modules) and servers (providing services to other modules). A Java applet-based user interface provides cross-platform and distributed user access to DOME module servers throughout the network.

An Internet Interface for Engineering Design Courseware

2005 ◽  
Author(s):  
Robert W. Brennan
Keyword(s):  
Engineering Education ◽  
Engineering Design ◽  
Web Server ◽  
Distributed Database ◽  
Design Engineering ◽  
Web Based ◽  
Education Community ◽  
The Web

In this paper we focus on an approach to make web-based design engineering courseware accessible for the engineering education community. The proposed approach uses a distributed database driven web server where design courseware, or “CDEN Modules”, are organized by topic and tier. We provide a description of the basic architecture that is used for the web server and an example of an interface that is based on this approach.

An Intelligent Web Caching System for Improving the Performance of a Web-Based Information Retrieval System

2020 ◽  
Vol 16 (4) ◽  
pp. 26-44
Author(s):  
Sathiyamoorthi V. ◽  
Suresh P. ◽  
Jayapandian N. ◽  
Kanmani P. ◽  
Deva Priya M. ◽  
...  
Keyword(s):  
Information Retrieval ◽  
Web Caching ◽  
Web Pages ◽  
Data Sets ◽  
Data Traffic ◽  
Content Delivery Network ◽  
Web Based ◽  
Long Time ◽  
User Access ◽  
The Web

With an increasing number of web users, the data traffic generated by these users generates tremendous network traffic which takes a long time to connect with the web server. The main reason is, the distance between the client making requests and the servers responding to those requests. The use of the CDN (content delivery network) is one of the strategies for minimizing latency. But, it incurs additional cost. Alternatively, web caching and preloading are the most viable approaches to this issue. It is therefore decided to introduce a novel web caching strategy called optimized popularity-aware modified least frequently used (PMLFU) policy for information retrieval based on users' past access history and their trends analysis. It helps to enhance the proxy-driven web caching system by analyzing user access requests and caching the most popular web pages driven on their preferences. Experimental results show that the proposed systems can significantly reduce the user delay in accessing the web page. The performance of the proposed system is measured using IRCACHE data sets in real time.

Agent-based Collaboration Between Distributed Web Applications: Case Study on 'Collaborative Design for X' Using CyberCO

2002 ◽  
Vol 10 (4) ◽  
pp. 279-290
Author(s):  
G Q Huang ◽  
K L Mak
Keyword(s):  
Collaborative Design ◽  
Web Applications ◽  
Workflow Management ◽  
Data Driven ◽  
Prototype System ◽  
Engineering Systems ◽  
Web Based ◽  
Agent Based ◽  
Systems Collaboration

This paper presents a case study on the collaboration between a set of distributed web applications developed and deployed for carrying out a 'Design for Assembly' analysis. The case study is conducted using a web-based prototype system called CyberCO. The system is based on a theoretical framework which has been formed through an innovative combination of a number of concepts such as agents and workflows. Unlike previous attempts in computer supported concurrent engineering systems, collaboration in this framework between distributed web applications is achieved through workflows between their representative agents. The flows of data between agents are guided by the associated constraints. The flows of controls are somewhat data-driven in the sense that agents start and stop themselves whenever the predefined conditions are satisfied. The data-driven flows of controls are different from those widely used in workflow management where flows of controls are determined by the precedence relationships. The key purpose of this case study demonstration is to extend our knowledge and insights into this emerging field where increasing number of web applications are developed and deployed for collaborative product development and realization projects.

Integrated Drilling Engineering Design System Based on Web Services

2012 ◽  
Vol 482-484 ◽  
pp. 1874-1880
Author(s):  
Zhi Kun Liu ◽  
Qi Li ◽  
Hong Shan Liu ◽  
Liang Wen
Keyword(s):  
Web Services ◽  
Engineering Design ◽  
Collaborative Design ◽  
Drilling Fluid ◽  
Design System ◽  
Drilling Engineering ◽  
Cross Platform ◽  
Fluid Design ◽  
Design Result ◽  
Engineering Staff

Direct towards the current research status of domestic drilling design, according to the characteristics of distributed, cross-platform and openness in Web Services, It is proposed to build a integrated drilling engineering design system included design basis, data support, drilling engineering design, cementing design, drilling fluid design and management of design result under the network environment using Web Services technology. The system would accomplished using Oracle9i and VS2008, so that it would become a reality that more drilling engineering staff or design staff distributed in different parts in a unified software platform for collaborative design.

A Web-Based Collaborative Design Advisory System for Micro Product Design Assessment

2007 ◽  
Vol 10-12 ◽  
pp. 220-224 ◽  
Author(s):  
Xiao Dai ◽  
Yi Qin ◽  
Neal P. Juster
Keyword(s):  
Collaborative Design ◽  
Integrated System ◽  
Design Parameters ◽  
Prototype System ◽  
Design Environment ◽  
Micro Forming ◽  
Web Based ◽  
Design Assessment ◽  
Advisory System ◽  
Microsoft Access

A web-based collaborative design advisory system for designing micro products is being developed, which is based on use of both knowledge and rules. The system is aimed at helping designers to assess/optimise the design of micro products to be manufactured with micro-forming. The Microsoft C# programming language, ASP.Net technique and Microsoft Access database system have been used to develop this system. The system is composed of various assessment modules such as product geometry features, forming processes, materials, machines, tools and cost assessment modules. Clients can use/browse the user interface of the integrated system through the internet to import a CAD design model and define design parameters. The system is not only able to assess the client’s design but also to generate preliminary process plans for the selected micro-forming processes. A micro-pin design is used as an example to test the capability of the 1st prototype system. With such a system, some advantages such as increasing the design efficiency in the web-based collaborative design environment have been identified.

Establishing a Protocol to Observe Leadership Behaviors Within Engineering Design Teams

2018 ◽  
Author(s):  
Doug Chickarello ◽  
James Righter ◽  
Apurva Patel ◽  
Joshua D. Summers
Keyword(s):  
Engineering Design ◽  
Collaborative Design ◽  
Interrater Reliability ◽  
Design Space ◽  
Leadership Behaviors ◽  
Video Recording ◽  
Design Teams ◽  
Rater Agreement ◽  
Design Activities ◽  
Student Team

The purpose of this study is to establish a protocol capable of identifying functional leadership behaviors in engineering design teams. The protocol is developed from a literature review that includes general leadership theory and research performed on collaborative design teams. Three different raters applied the leadership protocol to a video recording of a graduate student team performing a function structure modeling activity. The results of the study demonstrate that the protocol has a high amount of intra-rater agreement and an acceptable level of interrater reliability. Additionally, the pilot study revealed that clarification and refinement of the protocol with respect to leader/follower behaviors can improve rater agreement. Finally, changes to the protocol are proposed to map leadership behaviors to the design space the team is working in and the design activities that the team is performing.

Subassembly-Centered Product Assemblability Analysis Method

2011 ◽  
Vol 199-200 ◽  
pp. 1896-1900
Author(s):  
Bei Sheng Lv
Keyword(s):  
Collaborative Design ◽  
Evaluation System ◽  
Assembly Planning ◽  
Prototype System ◽  
Analysis Method ◽  
Web Based ◽  
Process Step ◽  
Assembly Simulation ◽  
Collaborative Assembly ◽  
Analyze Structure

An assemblability evaluation system of products including parts and subassemblies was presented. The necessity about assemblability evaluation for subassemblies was discussed. A subassembly-centered product assemblability analysis method was proposed. The two-step assemblability analysis flow including process step and entire step about subassembly was designed, which can analyze structure of subassembly when it was assembled and fitted on product. A web-based prototype system of subassembly-centered product assimilability evaluation which supports multi-sited collaborative design was developed with Java/JSP, which integrated with the platform of collaborative assembly planning and collaborative assembly simulation. Finally, an example was used to validate reasonability of subassembly assemblability analysis method and the effectiveness of the evaluation system.

scholarly journals CRYPTOGRAPHY USED IN WHATSAPP

2020 ◽  
Author(s):  
Anushka Xavier K
Keyword(s):  
Crucial Role ◽  
Public Key ◽  
Web Based ◽  
Private Key ◽  
Privacy Breach ◽  
Cross Platform ◽  
End To End ◽  
The Web ◽  
Taking Care

In this era people are closely connected to each other using technology.Messaging services a plays a crucial role in this process.For this, WhatsApp Messenger being an exclusive cross-platform that allows to exchange text, files as well as audio and video messages.WhatsApp has 1.5 billion dynamic clients in 180 nations.However, being such a well liked application,taking care of privacy breach is very salient. It is necessary that the application protects clients confidentiality and authenticity. Thus, to give assurance and stealth to client, for the most part cryptography is utilized as a spine of the web based exchanges. WhatsApp utilizes End-to-End Encryption technique and uses various protocols (Signal protocol etc.) and keys (public key, private key etc.) along with algorithm like Curve25519.In this era people are closely connected to each other using technology.Messaging services a plays a crucial role in this process.For this, WhatsApp Messenger being an exclusive cross-platform that allows to exchange text, files as well as audio and video messages.WhatsApp has 1.5 billion dynamic clients in 180 nations.However, being such a well liked application,taking care of privacy breach is very salient. It is necessary that the application protects clients confidentiality and authenticity. Thus, to give assurance and stealth to client, for the most part cryptography is utilized as a spine of the web based exchanges. WhatsApp utilizes End-to-End Encryption technique and uses various protocols (Signal protocol etc.) and keys (public key, private key etc.) along with algorithm like Curve25519.

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