SYSTEMS-CHAPTER 1-3 QUESTIONS AND
ANSWERS 2025 GRADED A+
Four Basic elements of a data flow diagram - ANSWERS data source and
destination, data flows, transformation of data process, and data stores
Data source and destinations - ANSWERS represented by squares
Context Diagram - ANSWERS Highest level data flow
Guidelines for drawing a data flow - ANSWERS understand the system, ignore
certain aspects of the system, ignore all control processes and control actions,
determine system boundaries, develop a context diagram, identify data flows, group
data flows, identify transformation process, group transformation processes, identify all
files or data stores, identify all data sources and destinations, name all data flow
diagram elements, subdivide the data flow diagram, give each process a sequential
number, repeat process, prepare final copy.
System - ANSWERS Set of 2 of more interrelated components that interact to
achieve a goal.
Goal Conflict - ANSWERS occurs when a choice or action of a subsystem is
inconsistent with another subsystem as a whole
Goal Congruence - ANSWERS is achieved when a subsystem achieves its goals
while contributing to the organizations overall goal.
Data - ANSWERS Facts that are collected, recorded, stored, and processed by an
information system
FACTS that need to be collected for a business - ANSWERS 1. Facts about the
activities. 2. Resources effected by the activities. 3. The people who participate in the
activity
Information - ANSWERS data that has been organized and processed to provide
meaning to the user.
Characteristics of useful and meaningful information - ANSWERS Relevant, reliable
(faithful representation), complete, timely, understandable, verifiable, and accessible