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Ch.22 Algorithm Design (I) (IPO charts) - Coggle Diagram
Ch.22 Algorithm Design (I)
(IPO charts)
An algorithm
(Logical order)
Pseudocode
Flowcharts
(symbols)
User interface
Suitable colours
consistent alignment of fields
concise and appropriate use of wording
appropriate use of control objects
(radio buttons & drop-down selection boxes)
Consistency in a user interface
Different versions for different types of users
Form field validation
Ask for feedback
22.3
Constants and variables
Data types
Numeric data types
Integer
Real
Character
Boolean
TRUE or False
Relational operators
<=
=
<
<>
Not equal to
=
Logical operators
Not
And
Or
Data structures
String
(Characters)
One-dimensional array
(index number)
22.4
Common data types
Character (single character/string)
Name, account number, address
, and telephone number
Logical (Boolean)
for making ‘Yes or No’ or ‘True or False’
Numeric (integer/real)
For calculations