ACG 306 Quiz M3

Question 1

Narratives: advantages/ disadvantages

Answer 1

ad: easy to understand, details, flexible format
dis: ambiguous, long, flexible format

Question 2

Flowcharts: advantages/ disadvantages

Answer 2

ad: physical representation, shows flow,
dis: not as detailed

Question 3

Table of entities & activities: advantages/ disadvantages

Answer 3

ad: structured, concise, organized by entity
dis: not visual

Question 4

Table of entities & activities vs narrative

Answer 4

table- acts as a starting point for DFD’s and flowcharts, highlights action verbs, structured version of narrative

Question 5

What makes something/ someone an entity

Answer 5

person, computer, or department that performs an activity

Question 6

2 categories of activities that entities perform

Answer 6

sending/ receiving or process

Question 7

What are physical DFD’s

Answer 7

shows physical design of system using players and files

Question 8

4 symbols/ components of DFD’s

Answer 8

External entity- rectangle, internal entity- oval, file- parallel lines, data flow- arrows

Question 9

Flow chart guidlines

Answer 9

read top to bottom and left to right, labeled using action verb phrases, inputs and outputs, swimlanes, and terminals labeled with noun phrases

Question 10

5 steps for preparing a flowchart

Answer 10

1. begin w table
2. set up column for each entity
3. top to bottom and left to right
4. follow sandwich rule
5. never lose a document

Question 11

Sandwich rule

Answer 11

document, process, document

Question 12

Sending/ receiving documents implied by…

Answer 12

arrows

Question 13

Symbol to break up a flowchart

Answer 13

on page connector