QUIZ 1 Part 4 (M1S1) Flashcards
Five important characteristics of open systems (5)
- Input from Outside
- Entropy
- Process, output and cycles.
- Differentiation
- Equi-Finality
open system are self adjusting and self-regulating
Input from Outside
all dynamic system tends to run down overtime, resulting in (BLANK) or loss of energy.
Entropy
open systems produce useful (BLANK) and (BLANK) in (BLANK), following a continuous flow path.
Process, output and Cycles
open systems have a tendency toward an increasing specialization of functions and a greater (BLANK) of their components
Differentiation
the term implies that goals are achieved through differing courses of action and a variety of paths.
Equi-finality
is the basis interaction between the user and the analyst. it provides instructions, commands and feedback;
Information system/Man Made Information system
it determines the nature of the relationship between the decision makers. it may be viewed as a decision center for personnel at all levels.
Information system/Man Made Information system
an (BLANK) may be defined as a set of devices, procedures and operating systems designed around user-based criteria to produce information and communicate it to the user for planning, control and performance;
Information System/ Man Made information system
is based on the organization represented by the organization chart. the chart is a map of positions and their authority relationships, indicated by boxes and connected by straight lines. it is concerned with the pattern of authority, communication and workflow;
Formal Information System
every computer system deals with the real world, a problem area, or a reality outside itself.
System Models
Various Business (BLANK) are used to show the benefits of abstracting complex system to model form.
System Models
Major Models are? (4)
- Schematic
- Flow
- Static
- Dynamic system models
is a two dimensional chart depicting system elements and their linkages. different arrows are used to depict information flow, material flow and information feedback. Various elements of the system are depicted in boxes.
Schematic Models
shows the flow of the material, energy and information that holds a system together. there is an orderly flow of logic in such system.
Flow System models