IT Applications

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          Introduction
We are now in the era that no one can
 stop the progress of internet
 technology. To get hold of the
 advantage of this amazing technology,
 information technologies (IT) which is
 used to represent communication and
 computing tools evolved and
 developed different IT applications.
    Transaction Processing
           Systems
 Available since the 1970s
 Allows all the operations to be
  grouped into a single transaction to
  prevent problems in consistency.
 Needs to pass the ACID test.
       Atomicity
       Consistency
       Isolation
       Durability
        Knowledge Management
              Systems
   System that help in managing information,
    projects, processes and knowledge in
    organization.
   Used to capture, store and disseminate
    information.
       Workflow process library
       Document management system
       Event management system
   Manage itself
   Function just like the human brain
    Expert System And Artificial
            Intelligence
   Computer programs derived from artificial
    intelligence (AI).
   Two principal parts
       The knowledge base
           Rule-based
           Unit
       The reasoning or inference engine
           Problem-solving model, or paradigm
               Forward chaining
               Backward chaining.
   Reasoning with uncertainty
   Explanation of the line of reasoning
Enterprise Resource Planning
          Systems

   Integrate all data and processes of an
    organization into a unified system.
   Use multiple components of computer
    software and hardware to achieve the
    integration.
   Use of a unified database to store data
    for the various system modules.
       E-commerce Systems
   Processes data.
   Provides information to support the
    operations and management of an
    organization’s electronic commerce
    activities.
       Operation             Management
       •Advertising          •customer targeting
       •Selling              •Product promotion
       •Order entry           management
       •Order fulfillment    •Sales analysis
       •Billing              •credit management
       •Customer support
               References
Engelmore, RS & Feigenbaum, E. Expert systems and
  artificial intelligence. Retrieved september 08, 2008
  from http://www.Wtec.Org/loyola/kb/c1_s1.Htm
Nickerson, RC. An e-commerce system model.
  Retrieved September 08, 2008 from
  http://online.sfsu.edu/~rnick/isys895/ecmodel.pdf
Web development scenario - knowledge management.
  Retrieved September 08, 2008 from
  http://www.Stylusinc.Com/common/scenarios/km.Ph
  p.
What is transaction processing?. Retrieved September
  08, 2008 from http://www.Wisegeek.Com/what-is-
  transaction-processing.Htm
(2006). Enterprise resource planning systems.
  Retrieved September 08, 2008 from
  http://gleez.com/articles/erp/enterprise-resource-
  planning-systems

				
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