Structure_Diagrams

Question 1

What is a structure diagram…?

Answer 1

Graphical representation of logic using industry recognized symbols, Pseudo Code Instructions (statements), and where necessary, selected mathematical symbols.

Question 2

The………. all have relevance to the meaning of the problem solution and therefore are important to the reader.

Answer 2

Order of the symbols
The Pseudo Code instructions inside them
The way in which the symbols are joined by lines

Question 3

Structure diagrams do NOT…?

Answer 3

represent any particular programming language, but rather a standard method of showing logic.

Question 4

Structure diagrams do….?

Answer 4

show the solution to a given problem in a step by step sequence using symbols and Pseudo Code instructions.

Question 5

When the drawing of the Structure Diagram is complete then…?

Answer 5

the Structure Diagram and accompanying Pseudo Code instructions are converted to the chosen programming language.

Question 6

Naming a Problem Solution:

The name must…?

Answer 6

describe the problem and be expressed in Camel Case format e.g areaOfCircle

Question 7

Instructions: The symbols

Draw only one….?

Answer 7

subprogram on each physical page.

Question 8

Instructions: The Symbols

The subprogram can not spread over more than…?

Answer 8

one physical page.

Question 9

Page Numbering:

Identify each page at the…?

Answer 9

top right hand corner. e.g. Page n (where n is the page number)

Question 10

Symbols:

Use no more than…?

Answer 10

7 shapes (symbols) on any line across the page.

Question 11

Symbols:

The solution can continue on the same page at…?

Answer 11

a position further down the page.

Question 12

Symbols:

The on-page connection symbol must…?

Answer 12

be used when this happens.

Question 13

Symbols:

The use of a max of ____ symbols on any line is a physical paper size limitation.

Answer 13

The use of a maximum of 7 symbols on any line is a physical paper size limitation.

Question 14

Naming the Variables:

The name must describe the purpose of the variable and be expressed…?

Answer 14

in Camel Case format and be underlined e.g. circleRadius, valueOfGst

Question 15

Names of Subprograms:

The name must describe the purpose of the subprogram and be expressed…?

Answer 15

in Camel Case format e.g setTheVariables, displayResults.

Question 16

Each Pseudo Code instruction (statement) is written inside…?

Answer 16

the relevant Structure Diagram symbol adhering to the Pseudo Code syntax rules.

Question 17

Do not write…?

Answer 17

more than 1 instruction in any symbol.

Question 18

Statement Operators:

Arithmetic…?

Answer 18

add, subtract, multiply, divide

Question 19

Statement Operators: Arithmetic:

Add and subtract have….?

Answer 19

two possible formats.

Question 20

Statement Operators: Arithmetic:

Multiply and divide…?

Answer 20

have only one format.

Question 21

Statement Operators: Arithmetic:

In all cases, the “answer” ends up in…?

Answer 21

ends up in the variable at the right hand end.

Question 22

Statement Operators: Arithmetic:

Other Variables retain their….?

Answer 22

original value.

Question 23

Statement Operators: Arithmetic:

Add and subtract operators can have…?

Answer 23

multiple operands provided
they are comma separated e.g.
add apples, peaches, pears, grapes giving fruitSalad
subtract buildings, trees, grass from property giving wasteLand

Question 24

Statement Operators: Show:

Each show implies…?

Answer 24

a new “line” of output.

Question 25

Statement Operators: Show:

Show operators can have…?

Answer 25

multiple operands provided they are comma separated

eg. show “Totals are” , tax, gross, nett

Question 26

Statement Operators: If:

Structure diagram symbol for selection implies if so the…?

Answer 26

‘if’ is removed from the relevant Pseudocode statement.
eg
if counter = 25 in Pseudo Code becomes
counter = 25 in the Structure Diagram symbol

Question 27

Statement Operators: Repeat:

Structure Diagram Symbol for iteration implies ‘repeat’ so the…?

Answer 27

‘repeat’ is removed from the relevant Pseudo Code statement.
eg repeat while counter < 25 in Pseudocode becomes
while counter < 25 in the Structure Diagram symbol

Question 28

Conditional Operators:

May be used in a Pseudo Code instruction (statement) inside a…?

Answer 28

Structure Diagram Symbol.

Question 29

Conditional Operators:

Conditional Operators allowed…?

Answer 29

Relational: =  or equal to or equals
	      >  or greater than
	      <  or less than
 	      >= or greater than or equal to
                     <= or less than or equal to

Negation: not
Relational & Negation operators can be combined e.g. not =

Question 30

Structure Diagram Symbols:

Rectangle used for…?

Answer 30

Program (Solution) Name
Subprograms single call
Subprograms multi call
Simple instructions examples in notes

Question 31

Structure Diagram Symbols:

Hexagon used for…?

Answer 31

Selection-two alternatives-true path only
Selection-two alternatives-truth/false path
examples in notes

Question 32

Structure Diagram Symbols:

Polygon used for…?

Answer 32

Input messages
Data entry
Output messages
examples in notes

Question 33

Structure Diagram Symbols:

Rectangle (Rounded) used for…?

Answer 33

Repetition

examples on slide

Question 34

Structure Diagrams Symbols:

Bullet used for…?

Answer 34

on page connection.

examples on slides