465 research outputs found
Web-Based Brokerage System Development
Electronic Commerce (ecommerce) depends on the emergence of
capabilities that empower buyers to obtain the product data they need to make
informed purchase decisions, quickly and easily. Traditional physical markets
are often brokered by intermediaries that facilitate market transitions by
providing brokerage services.
In the global Internet Electronic Brokers provide a central marketplace,
and provide many essential third party services. Electronic Brokerages are
regarded as the core functionality in overcoming many current limitation of
Internet Commerce. Also, search costs, lack of privacy, incomplete information,
contracting risk, and pricing are better managed with Electronic Brokers.
However, Brokers are currently facing the problem of combining all the
information within a single coherent structure through which buyers can
navigate readily. This is due to the lack of interoperability standards between ecommerce
applications, which leads to high costs for the brokers. The research is to design a framework for building a web-based brokerage
system. The system plays a central role in allowing service providers to publish
and advertise their offer and at the same time helping the consumer to access
easily and in a moderate manner the offered services and information and try to
solve the problem of interoperability. Consumer Buying Behavior model which
consists of six stages that defines the decision process and acts of people
involved in buying and using products had been applied in the design of the
system. In addition to offering many essential third party services, the system
offers some tasks, which simplify the functionality of brokers, which override
the limitations of Internet e-commerce.
Client-server communication that uses 3-tier architecture had been used to
override the 2-tier limitations and enhance the security features of the system.
To achieve the requirements of such as online e-commerce application Java
servlets with JDBC on the server side, HTML and JavaScript on the client side
are used. Unified Modeling Language (UML) had been applied in order to
determine system structure and system behavior from user/system requirements.
The study shows that online brokerage can replace traditional brokers with
additional functionality. By designing reusable components and using certain
tools will try to solve Interoperability problem between ecommerce
applications. Java servlets shown as a powerful tool to be used on server side in
this type of application which can help to override some limitations of Internet
e-commerce
a combined top-down and bottom-up approach
The thesis focuses on the interoperability of autonomous legacy databases with
the idea of meeting the actual requirements of an organization. The
interoperability is resolved by combining the topdown and bottom-up
strategies. The legacy objects are extracted from the existing databases
through a database reverse engineering process. The business objects are
defined by both the organization requirements and the integration of the
legacy objects
The ATLAS Metadata Interface
International audienceAMI was chosen as the ATLAS dataset selection interface in July 2006. It is the main interface for searching for ATLAS data using physics metadata criteria. AMI has been implemented as a generic database management framework which allows parallel searching over many catalogues, which may have differing schema. The main features of the web interface will be described; in particular the powerful graphic query builder. The use of XML/XLST technology ensures that all commands can be used either on the web or from a command line interface via a web service. We also describe the overall architecture of ATLAS metadata and the different actors and granularity involved, and the place of AMI within this architecture. We discuss the problems involved in the correlation of metadata of differing granularity, and propose a solution for information mediation
Non-invasive lightweight integration engine for building EHR from autonomous distributed systems
[EN] In this paper we describe Pangea-LE, a message-oriented lightweight data integration engine that allows homogeneous and concurrent access to clinical information from disperse and heterogeneous data sources. The engine extracts the information and passes it to the requesting client applications in a flexible XML format. The XML response message can be formatted on demand by appropriate Extensible Stylesheet Language (XSL) transformations in order to meet the needs of client applications. We also present a real deployment in a hospital where Pangea-LE collects and generates an XML view of all the available patient clinical information. The information is presented to healthcare professionals in an Electronic Health Record (EHR) viewer Web application with patient search and EHR browsing capabilities. Implantation in a real setting has been a success due to the non-invasive nature of Pangea-LE which respects the existing information systems.This work was partially funded by the Spanish Ministry of Science and Technology (MEC-TSI2004-06475-102-01) and the
Spanish Ministry of Health (PI052245)Angulo Fernández, C.; Crespo Molina, PM.; Maldonado Segura, JA.; Moner Cano, D.; Perez Cuesta, D.; Abad, I.; Mandingorra Gimenez, J.... (2007). Non-invasive lightweight integration engine for building EHR from autonomous distributed systems. International Journal of Medical Informatics. 76(Supplement 3):417-424. https://doi.org/10.1016/j.ijmedinf.2007.05.002S41742476Supplement
Approaches Regarding Business Logic Modeling in Service Oriented Architecture
As part of the Service Oriented Computing (SOC), Service Oriented Architecture (SOA) is a technology that has been developing for almost a decade and during this time there have been published many studies, papers and surveys that are referring to the advantages of projects using it. In this article we discuss some ways of using SOA in the business environment, as a result of the need to reengineer the internal business processes with the scope of moving forward towards providing and using standardized services and achieving enterprise interoperability.Business Rules, Business Processes, SOA, BPM, BRM, Semantic Web, Semantic Interoperability
Porqpine: a peer-to-peer search engine
In this paper, we present a fully distributed and collaborative search
engine for web pages: Porqpine. This system uses a novel query-based model
and collaborative filtering techniques in order to obtain user-customized
results. All knowledge about users and profiles is stored in each user
node?s application. Overall the system is a multi-agent system that runs on
the computers of the user community. The nodes interact in a peer-to-peer
fashion in order to create a real distributed search engine where
information is completely distributed among all the nodes in the network.
Moreover, the system preserves the privacy of user queries and results by
maintaining the anonymity of the queries? consumers and results? producers.
The knowledge required by the system to work is implicitly caught through
the monitoring of users actions, not only within the system?s interface but
also within one of the most popular web browsers. Thus, users are not
required to explicitly feed knowledge about their interests into the system
since this process is done automatically. In this manner, users obtain the
benefits of a personalized search engine just by installing the application
on their computer. Porqpine does not intend to shun completely conventional
centralized search engines but to complement them by issuing more accurate
and personalized results.Postprint (published version
webXice: an Infrastructure for Information Commerce on the WWW
Systems for information commerce on the WWW have to support flexible business models if they should be able to cover a wide range of requirements imposed by the different types of information businesses. This leads to non-trivial functional and security requirements both on the provider and consumer side, for which we introduce an architecture and a system implementation, webXice. We focus on the question, how participants with minimal technological requisites, i.e. solely standard Web browsers available, can be technologically enabled to articipate in the information commerce at a system level, while not sacrificing the functionality and security required by an autonomous participant in an information commerce scenario. In particular, we propose an implementation strategy to efficiently support persistent message logging for light-weight clients, that enables clients to collect and manage non-reputiable messages as proofs. We believe that the capability to support minimal system platforms is a necessary precondition for the wide-spread use of any information commerce infrastructure
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