6,259 research outputs found
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Integration, management and communication of heterogeneous design resources with WWW technologies
Recently, advanced information technologies have opened new pos-sibilities for collaborative designs. In this paper, a Web-based collaborative de-sign environment is proposed, where heterogeneous design applications can be integrated with a common interface, managed dynamically for publishing and searching, and communicated with each other for integrated multi-objective de-sign. The CORBA (Common Object Request Broker Architecture) is employed as an implementation tool to enable integration and communication of design application programs; and the XML (eXtensible Markup Language) is used as a common data descriptive language for data exchange between heterogeneous applications and for resource description and recording. This paper also intro-duces the implementation of the system and the encapsulating issues of existing legacy applications. At last, an example of gear design based on the system is il-lustrated to identify the methods and procedure developed by this research
Interoperability of Information Systems and Heterogenous Databases Using XML
Interoperabilily of information systerrrs is the most critical issue facing businesse!
that need to access information from multiple idormution systems on
tlifferent environments ancl diverse platforms. Interoperability has been a basic
requirement for the modern information systems in a competitive and volatile
business environment, particularly with the advent of distributed network system
and the growing relevance of inter-network communications. Our objective
in tltis paper is to develop a comprehensiveframework tofacilitate interoperability
smong distributed and heterogeneous information systems and to develop prototype
software to validate tlte application of XML in interoperability of infurmation
systems and databases
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Leveraging legacy codes to distributed problem solving environments: A web service approach
This paper describes techniques used to leverage high performance legacy codes as CORBA components to a distributed problem solving environment. It first briefly introduces the software architecture adopted by the environment. Then it presents a CORBA oriented wrapper generator (COWG) which can be used to automatically wrap high performance legacy codes as CORBA components. Two legacy codes have been wrapped with COWG. One is an MPI-based molecular dynamic simulation (MDS) code, the other is a finite element based computational fluid dynamics (CFD) code for simulating incompressible Navier-Stokes flows. Performance comparisons between runs of the MDS CORBA component and the original MDS legacy code on a cluster of workstations and on a parallel computer are also presented. Wrapped as CORBA components, these legacy codes can be reused in a distributed computing environment. The first case shows that high performance can be maintained with the wrapped MDS component. The second case shows that a Web user can submit a task to the wrapped CFD component through a Web page without knowing the exact implementation of the component. In this way, a userâs desktop computing environment can be extended to a high performance computing environment using a cluster of workstations or a parallel computer
Towards a novel framework for the assessment of enterprise application integration packages
In addressing enterprise integration problems, a diversity
of technologies such as CORBA and XML were
promoted, yet no single integration technology solves all
integration problems. As a result, a new generation of
software called Enterprise Application Integration (EAI)
is emerging to addresses many integration problems by
combining a diversity of integration technologies (e.g.
message brokers, adapters, XML). Since EAI is a new
research area, there is an absence of literature discussing
issues like its adoption, evaluation and implementation.
This paper, examines the application of two frameworks
for the evaluation of EAI packages in the practical arena.
In doing so, the authors use case study strategy to
investigate integration issues. Empirical data derived
from the case study suggest additions to the two
evaluation frameworks. Therefore, the authors revised
and extend previous works by proposing a novel
evaluation framework for the assessment of EAI
packages. The proposed framework makes novel
contribution at two levels. First, at the conceptual level,
as it incorporates criteria identified separately in previous
studies as evaluation criteria. The proposed framework
can be used as a decision-making tool and, supports
management when taking decisions regarding the
adoption of EAI. Additionally, it can be used by
researchers to analyse and understand the capabilities o
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