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Vienna University Department of Business, Economics, and Computer Science
Data Mining ( Knowledge Discovery ) |
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Generally, data mining (sometimes called data or
knowledge discovery) is the process of analyzing data from different
perspectives and summarizing it into useful information - information
that can be used to increase revenue, cuts costs, or both. Data
mining software is one of a number of analytical tools for analyzing
data. It allows users to analyze data from many different dimensions
or angles, categorize it, and summarize the relationships identified.
Technically, data mining is the process of finding correlations or
patterns among dozens of fields in large relational databases..(but in german )
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Vienna Technology University Department of Automation
Centrex ( Central Office Exchange Service )
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Centrex ( central office exchange service ) is a service
from local telephone companies in the United Stated in which up-to-date
phone facilities at the phone company`s central ( local ) office are
offered to business users so that they don’t need to purchase their
own facilities. The Centrex service effectively partitions part of
its own centralized capabilities among its business customers. The
costumer is spared the expense oh having to keep up with fast-moving
technology changes ( for example, having to continually update their
private branch exchange infrastructure ) and the phone company has a
new set of services to sell.
Centrex is the generic name of telecommunication services, similar
to Private Branch Exchange ( PBX ), offered by an operating company
that uses the capabilities of a public switching system. The idea of
Centrex service is to integrate features normally associated with a
Private Branch Exchange ( PBX ) based telecommunication system. This
allows for a flexible environment to support the communication
requirements of a business customer
In many cases, Centrex has now replaced the private branch exchange.
Effectively, the central office has become a huge branch exchange for
all of its local customers. In most cases, Centrex ( which is sold by
different names in different localities ) provides customers with as
much if not more control over the services they have than PBX did.
In some cases, the phone company places Centrex equipment on the
customer premises.
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Vienna Technology University Department of Automation
EWSD (Electronic worldwide switch digital system. )
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EWSD is a digital switching technology developed by
SIEMENS in order to provide new facilities and new solutions in the
telecommunications market and to fulfill the future`s communication`s
needs.
Today, the convergence of the classical telephony and ISDN networks
with Internet and broadband networks has resulted in big
opportunities for the telecommunication operators / service providers.
While network structures are changing very rapidly, the traffic
volume per subscriber is increasing drastically.
These changes in the telecommunications network bear big opportunities
for the future. With the installation of the EWSD switches, new and
interesting services will be provided for the subscribers in
order to constitute new business opportunities in such a
competitive environment.
EWSD as a next generation network solution provides a high
performance platform to offer not only classical access types
for the subscribers but also broadband services like xDSL,
ATM, FR, LL.
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Vienna Technology University
Department of Design & Asseement of Technology
Screen Design
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The elements of background color could take easily over 16,000 000 values on
most of Today`s color computer systems. Therefore the correct combination could b
e imposibble task finds if gave only a correct combination. But like most things
gives several ways to create screen or group of screens of information those are
effective for users. ( but only in German )
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