Reference Customers
Tourism Web Site For Austria's Skiing Industry -
Joint with TISCover
E-XMLMEDIA components (Mediator and Repository) are in
production use for a
Web site http://www.tiscover.com/ that collects information
from multiple data sources
(Weather, snow camera video feed, hotel information, etc.).
The information is collected, transformed into XML and stored
in a relational database. Information collection is performed
through the Mediator component. Storage of XML data is
performed through the Repository component. Developers then
create specific presentations for the site using Java. Thus,
E-XMLMEDIA software serves as a middleware platform for data
integration and data presentation.
The architecture diagram shows the functional units of the
system. The Web Server platform is used as the delivery
vehicle for HTML pages to clients. The presentation logic is
encoded in Java Servlets and XSLT scripts that extract
information from an XML repository via XQueries. The business
logic section fills the XML Repository with data (diagram does
not show the Business Logic connected to the XML Repository).
This logic issues queries against a uniform view of a
heterogeneous collection of data sources provided by the
Mediator. The Mediator accepts the query, slices it into sub
queries, translates the sub queries into languages suitable
for the data sources, submits the sub queries to the data
source, gathers the answers and delivers the combined result
to the business logic unit. The mediator does all this in
real time. The end result is an efficient and flexible system
for rapid modifications and additions of new data sources and
presentation material to the WWW site.
Management of Patient Data in a Hospital
The E-XMLMEDIA components have been successfully used in a
hospital for the collection of diseases in patient records in
multiple information systems (UNIX Oracle, AS 400, and files).
Data stored temporarily in a relational database via the
Repository component, information extracted in XML format were
presented to doctors via a specialized Java applet integrated
into a Web browser.
Stock Investment Tool - Joint With Firstinvest
The E-XMLMEDIA components are utilized in the development of a
Web site that manages knowledge in a stock investment analysis
system. The site permits to mine information from a wide
variety of Web sources, and also from investment banks and
investment analysts. An investor can specify buy/sell rules
and visualize the effects of these strategies on historical
stock data. This enables investors to develop optimal
investment strategies for their financial goals. The Mediator
product provides a uniform data model for the variety of Web
sources.
Integration Of Telecommunications Data - Joint With Alcatel
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The E-XMLMEDIA components are critical to a system developed
by Alcatel for the management of telecommunications equipment.
Call center data is exchanged with Customer Relationship
Management application via wrappers that utilize XML for
communication. These XML based messages are stored in the
E-XMLMEDIA Repository tightly integrated with an Oracle
database for high performance. An XML editor validates these
messages and can be used by a Web browser to visualize and
correct stored XML messages.
Global User Directory - Joint With France Télécom R&D
As illustrated by this example, in addition to developing
production commercial systems, E-XMLMEDIA performs leading
edge research in the application of XML to business systems.
This enables our technologists to stay at the forefront of the
field and incorporate the latest technologies and techniques
into our products and custom applications.
The R&D division of France Telecom is constructing a global
directory of telephone information, cellular phone
information, and Internet address information via the storage
of data in XML format. A collection of technologies will be
integrated to deliver a very high performance system
(Relational Database, LDAP directories, Object oriented
database, and main-memory databases). E-XMLMEDIA has been
engaged to develop XML Repository on top of a main-memory
database (TimesTen).
The objectives of this project were:
- Obtain better than 300 queries per second on 500 MB of main-memory data,
- Study the possibilities of distributed storage, high availability, and replication,
- Port the E-XMLMEDIA Repository onto TimesTen main-memory database.
The results obtained were:
- An optimized data model for the storage of XML,
- A proposal and implementation of a distributed and replicated architecture,
- The performance of 500 queries per second (600 in stand-alone mode),
- The study of complementary functionality (crash testing, scaling
of main-memory, performance of the system with a saturated RAM).
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