FINAL EXAM (M1S1) PART 3 Flashcards
two dimensional chart depicting system element and their linkages.
Schematic Models
Different arrows are used to depict information flow, Material Flow and information feedback
Schematic Model
shows the flow of materials, energy and information that hold the system together.
Flow system model
there is a orderly flow of logic in such models.
Flow system model
Widely Known Example is PERT (Program Evaluation and Review Technique)
Flow System Model
it is used to abstract a real-world system in model form, manipulate specific values to determine the critical path, interpret the relationship, and relay them back as a control.
PERT
this type of model exhibits one pair of relationship such as activity - time or cost - quantity.
Static system model
example of this model is the GANTT CHART
Static System model
Three Levels of Management
- Top Level Management
- Middle Level Management
- Lower Level Management
Categories of Information
- Strategic information
- Tactical or Managerial Information
- Operational Information
they make decision affecting the entire firm.
Top-Level Management
they are responsible for carrying out the goals set by top management.
Middle-Level Management
they are responsible for daily management of line workers the employees who produce the product or offer the service.
Lower-Level Management
-Big Picture and long term focused (2 to 5+ years)
-Vision, Mission, why, policies and direction
-Executive-Management
-What is the right direction for the company
Strategic
-Short Term focused (3 months to 2 years)
-Focused on specific business department
- Middle-Management
-what activities to be planned in strategic alignment
Tactical or Managerial
-Focused on day-to-day running
-Detail Level process for specific outcome
-Execution by teams and Managers
-Are we acting in alignment with strategy?
Operational
Types of Information System:
- Executive Information system (Executives)
- Decision Support System (Senior Managers)
- Management Information system (Managers)
- Transaction Processing system (Workers)
is a power structure designed to achieve company goals.
Informal information system
an organization’s emphasis on control to ensure performance tends to restrict the communication flow among employees.
Informal Information system
it is an employee based system designed to meet personnel and vocation needs and to help solve work related problems.
Informal Information system
it also funnels information upward through indirect channels.
informal information system
A third class of information system relies on the computer for handling business applications. The computer is now a required source of information;
Systems analysis relies heavily on computers for problem solving. This suggests that the analyst must be familiar with computer technology and have experience in handling people in an organizational context;
Computer Based Information system
it is an organized collection of people, procedures, software, databases and devices used to perform and record business transactions.
Transaction Processing System
is responsible for collecting, storing, modifying and retrieving data and generating reports
Transaction Processing System
