U3 APCSP Study Guide

Debugging

Finding and fixing problems in an algorithm or program.

Development process

the steps or phases used to create a piece of software. Typical phases include investigating, designing, prototyping, and testing

Event

associated with an action and supplies input data to a program. Can be generated when a key is pressed, a mouse is clicked, or by any other defined action that affects the flow of execution.

Incremental Development Process

a design approach that breaks the problem into smaller pieces and makes sure each piece works before adding it to the whole.

Iterative Development Process

a design approach requires refinement and revision based on feedback, testing, or reflection throughout the process. This may require revisiting earlier phases of the process.

Design specifications

Describing the requirements for how a program will work or users will interact with i.

Strings

an arbitrary-length sequence of characters. The characters used to indicate the beginning and end of a string are quotes: "" . Example strings: "hello" , "hello world!" , "This is a string" The quotation marks are necessary to distinguish strings from things like variable names that we will learn later.

User Interface

the inputs and outputs that allow a user to interact with a piece of software. User interfaces can include a variety of forms such as buttons, menus, images, text and graphics.

Documentation

a written description of how a command or piece of code works or was developed.

Comment

form of program documentation written into the program to be read by people and which do not affect how a program runs.

Output

any data that are sent from a program to a device. Can come in a variety of forms, such as tactile interaction, audio, visuals, or text.

Input

data that are sent to a computer for processing by a program. Can come in a variety of forms, such as tactile interaction, audio, visuals or text.

Purpose

the intended goal or objective of the program.

Program Statement

a command or instruction. Sometimes also referred to as a code statement.

Program

a collection of program statement

Sequential Programming

program statements run in order, from top to bottom.

Event Driven Programming

some program statements run when triggred by an event, like