Collegeboard Unit 1.2 Notes + Quiz

Categories of innnovations: Applications (games, social media, etc.), Physical Devices (phones, computers, etc.), and Systems (E-commerce, E-mail, cloud services)
Computer Programs accept input in many ways (touch, audio, visual, text)
Many programs are written in an event driven environement
“Events” are triggered by some action, which usually sends input to the program
Input usually affects the output
What is a program? A program is a collection of statements. A statement is a single command. A group of statements is called a code segment. Code segments are executed according to the rules of the programming language.

Collegeboard Unit 1.3 Notes + what to improve on

How programs are developed: Starts with an idea, then programs are developed with a specific purpose, then developers follow specific steps and stick to their plan
Developers start investigating the problem/purpose and reflect
Developers must
1. determine the requirments of the program
2. understand the contraints
3. understand the user concerns and interests
How do developers investigate?
1. surverys
2. user testing
3. interviews
4. direct observations
Developers design the program by:
1. brainstorming (draw on investigation)
2. planning user experience
3. laying out the user interface
4. organizing into modules
prgram development is almost never a solo endeavor (work with your team)
When does documentation happen?
1. at the beginning: list specifications
2. during: to keep track of process
3. after: to explain the overall process
documentation throughout can improve efficiency of overall programming process + programmers’ ability to test and refine the program
maybe read more carefully as a whole
focus on key words and phrases test