Course Outline of Information System Technology by qjv85898

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									   Information Technology
& Changing Face of Business
   Solving Business Problems

      BUAD 358 - Information Systems II
            Ali A. Nazemi, Ph.D.
             Roanoke College
     Problem Solving
        Overview
Using Systems Approach
Modeling Business Process
Detecting Business Problems
Solving Business Problems
Testing Solutions
Role of IT in Business Problem-
solving
      System Concept
Why Systems Approach?
System Components
System Characteristics and
 Activities
Role of IS in Systems Approach
Approaches to Problem-Solving
   A Systems Approach
      Input, Process, Output
      Divide and Conquer
      Goals and Objectives
      Control and Feedback
      Diagramming Systems
      Common Systems Problems in Business
   Object Oriented Design
   Asking Questions
   Solving Business Problems and Cases
System Concepts
                         Environment



              Feedback                   Feedback
               Signals                    Signals

         Control           Control by         Control
         Signals          Management          Signals




        Input of         Manufacturing        Output of
      Raw Materials        Process       Finished Products

  System Boundary
                         Other Systems
  System Components
Input Resources
Process Resources
Output Resources
Control Mechanism
Internal Environment
External Environment
Information System Components
                        Environment

                          Control
                        Management

                                Feedback           Decision
                         Information
                           Systems




          Input                                 Output
                          Process
   (Data & Resources)                      (Info. Products)



 System Boundary
                        Stakeholders
System Characteristics
Processes Input into Output
Exists within and Interacts with
 Environment
Has Defined Objectives and Goals
Contains Subsystems
Has Defined Boundaries (Interface)
Maintains Equilibrium with its
 Environment
Uses Feedback and Control
Solving Business Problems &
           Cases
  Solve the right problem
  Choose the right tools
  Divide the system
                          Suggested Case Organization
  Make decisions         •Statement of facts

  Consider the           •Description of problems
                         •Opportunities
  consequences
                         •Alternatives
  Test the system        •Decision & Plan

  Plan implementation
  Case hints
Business Problem Solving
Problems and Symptoms
Problems with Subsystems
Problems with Control
Problems with Environment
Systematic Problem-Solving
 Process
Evaluating Solution Alternatives
Developing IS Solutions
Problems and Symptoms
What are Problems?
What are Symptoms?
What’s the Difference?
Who Cares?
    Defining Problems
The Right Problem
The Right Tool
The Right Information
Think Systems
Evaluating and Selecting
       Solutions
   Alternatives
   Solution Criteria
   Feasibility Study
   Trade-Off
   Consequences
   Intangibles
Testing and Implementing
        Solutions
 Implement
     Commit Resources
 Test
     Stress, Beta, Limit
 Follow Up
     Does It Work?
     Is It Effective?
     What Errors?
Feasibility Study
  Organizational
  Economic
  Technical
  Operational
            Evaluating Projects
Does the project fit with business goals and
management style?
Does the project improve the competitive position of
the firm?
How long will any competitive advantage last?
What value or reward is created by the system?
What level of technology is needed to create the
system?
   experimental
   leading edge
   established
   old-hat
         Evaluating Projects
What is the probability of technical
success?
What is the probability of commercial
success?
What are the costs involved in creating the
system?
   Monetary
   Time
   Additional capital, marketing and management
     Cost, Benefit, Value
Benefits Versus Value
Cost Considerations
 •   Tangible Vs Intangible
 •   Direct Vs Indirect

Benefit Considerations
 •   Tangible Vs Intangible
 •   Direct Vs Indirect
Good Business Analysis
Identify the root causes of problems.
Solid grasp of strategic components.
Identify the critical success factors.
Evaluate the financial implications.
Thorough discussion of implementation.
Realistic analysis of expected results.
Effect on future growth and continued
development.
Effect on human resources.
Understanding of target markets.
     Organization of Analysis
Statement of the facts.
Description of problems.
Opportunities.
Analysis of alternatives.
Decision and plan.
   Choose one alternative.
   Detailed plan and implementation.
   Costs and benefits.
   Contingency plan.

								
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