3.2 Algorithms and Code

Algorithm

Procedure for problem-solving based on a sequence of steps

Algorithm input

Data put into an algorithm for processing

Algorithm output

Data processed by an algorithm

Unambiguous

Clear and concise, lacking ambiguity

Finite

Having a limited number of steps and completing when ended

Well defined

Specific steps to be done in a certain order

Feasible

Possible with available resources

Independent

Not reliant on a specific programming language

Sub algorithm

Steps of a small activity within an algorithm

Instructions

Steps in the form of sub algorithms

Variables

Values that can be changed affecting the outcome

Conditionals

Decision or choice steps in an algorithm (if/then)

Loops

Allow instructions to repeat in an algorithm

Programming language

System of notation for writing computer programs

Flowchart

Visual overview of an algorithm from start to finish

Natural languages

Human languages used initially for algorithms, later replaced by flowcharts

Prioritization algorithm

Sorting algorithm used to prioritize tasks

Association rule

Reveals relationships between items

Black box algorithm

Provides insight without revealing the process

Transparency in algorithms

Ability to understand and explain how an algorithm works

Algorithmic bias

Bias introduced unintentionally by developers or unreliable training data