SDD and Data Representation Glossary Flashcards

Flashcards for reviewing SDD and Data Representation glossary terms.

Algorithm

Steps to solve a problem.

Arithmetic operator

Math symbol (+, -, *, /).

Assignment

Storing a value in a variable.

BODMAS

Order of operations: Brackets, Orders, Division, Multiplication, Addition, Subtraction.

Boolean

TRUE or FALSE.

Comparison operator

Compares data (>, <, =).

Concatenation

Joining strings together.

Condition

Variable compared to a value.

Conditional loop

Loop that repeats based on a condition.

Data Type

How a variable's value is stored (Integer, Real, String, Boolean).

Declaration

Setting up a variable.

Exceptional test data

Unacceptable test data.

Expression

Calculates a value.

Extreme test data

Test data at the limit.

Fixed loop

Loop that repeats a set number of times.

Flowchart

Diagram of processes and decisions.

Input

Data entered into a program.

Integer

Whole number.

Internal commentary

Explanations in code for programmers.

Normal test data

Acceptable test data.

Output

Result of a program.

Process

Calculations or comparisons.

Program

Instructions for a computer.

Real (Single)

Number with a decimal.

Repetition construct

Loop to repeat code.

Selection construct

Decides whether to run code.

String

Text.

Structure Diagram

Diagram of processes.

Test table

Data to test program.

Variable

Storage for data.

Wireframe

Layout of a program.

ASCII

Text format using binary.

Attributes

Properties of vector graphic objects.

Binary number system

Computer's number system.

Bit

Binary digit (1 or 0).

Bit depth

Bits per pixel for color.

Bitmap image

Grid of coloured pixels.

Character

Letter or symbol.

Character Set

A collection of characters known to the computer is called its character set. This can be different in countries that use a different alphabet than English.