pltw vocab

incremental approach

an approach to programming where the programmer adds and tests code in small chunks at a time to make sure it behaves the way they want it to, before adding more code.

program

A set of instructions that a computer executes (or uses) to achieve a particular objective.Code that performs tasks.

end user

A representative consumer (or customer) for whom a hardware or software product is designed.

user interface (UI)

The visual part of a computer app or operating system, through which an end user interacts with the computing device or software.

view layer

The layer of an app that the user sees and interacts with.

controller layer

The layer of an app that contains the program that tells the app how to behave.It acts as an intermediary between the user interface and the data layer, managing user inputs and application logic.

event

An action or occurrence that happens during runtime that will trigger a response or behavior by the software. 

Ex: user-initiated events, such as clicking a button, or external events, such as the device receiving an SMS text message.

runtime

The period when a program is running. Runtime begins when a program is opened (or executed) and ends when the program is closed.

event-driven programming

Type of computer programming where the program responds to an input (or trigger). EX: mouse clicks or a video game that responds to user inputs.

event handlers

A block of code that is triggered when a certain event happens.

user-initiated event

In a program, an event that is triggered by user interaction with the user interface.This includes actions like clicks, key presses, and mouse movements that initiate responses from the program.