JavaScriptSearch
Friday, November 3, 2006; 03:48 AM
The Cascade DataHub from Cogent Real-Time Systems
puts dynamic data into a web page without using .NET programming,
ActiveX objects, or Java applets. The Cascade DataHub's new built-in
web server uses client-side scripting to update data on a web page in
real time. Live trading or financial data from a streaming data source
or Excel spreadsheet can be viewed in any web browser, PDA, or cell
phone capable of using HTML and Javascript. Wi-Fi enabled devices can
even access data without accruing cellular connection charges.
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"Today's professional wants always-on access to his data," said Andrew
Thomas, president of Cogent Real-Time Systems. "Ajax by itself is a
leap forward in web technology, and when you connect it to a real-time
data feed through the Cascade DataHub, you get a truly dynamic system."
Ajax stands for Asynchronous Javascript And XML. It is a group of web
technologies that use client-side scripting to allow a web server to
send and receive data--without having to refresh the page in the
browser. Data displays can be updated instantaneously, even by clients
running very minimal web browsers. The only requirements for the client
side are the ability to support JavaScript and the XMLHttpRequest
function call that drives all Ajax applications. This makes Ajax an
ideal technology for cell phones and PDAs. The Cascade DataHub is a memory-resident real-time middleware
application that collects data from one or more sources and distributes
it to any number of clients. It can connect to an ordinary Excel
spreadsheet, allowing it to share data over a network or the Internet
with other spreadsheets. Now, with its built-in web server and Ajax,
the Cascade DataHub can send data from Excel to a web page on a PC or
cell phone, in real time.
"Ajaxopens a new window of opportunity for Excel users," said Mr.
Thomas. "Now there is a way to leverage a company's resources, and get
valuable data from an Excel spreadsheet into the pocket of any trader,
investor, or manager who needs it."
In addition to Ajax, the Cascade DataHub's web server can publish live
data using Java applets or ASP (Active Server Pages). The web server
contains a built-in demo that shows each of these options, featuring
real-time data displays for each. The Cascade DataHub can also write
data to any ODBC database like MySQL or SQLServer.
Based near Canada's financial capital of Toronto, Cogent is a
developer of middleware solutions that connect sources and consumers of
live data. Customers include the Bank of Canada, Cadbury Chocolate and
the European Space Agency. Cogent leverages its knowledge of real-time
systems to create data transport models for time-sensitive financial
applications.
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