Maintainability Flashcards
1
Q
Why are sub-programs used?
A
- Only need to be written once and then called whenever needed (reduces lines)
- Can be changed or tested without affecting the rest of the program
2
Q
Why is indentation used?
A
- Makes code easier to read
- Makes the beginning and end of a loop clear
- Used to make the IDE understand that this is the start or end of a loop
3
Q
Why are comments used?
A
- So if the programmer returns to his code, he knows what it was about
- For other programmers that read the code
4
Q
Why is program maintenance necessary?
A
- Programs need to change to correct errors, modified to prevent errors in the future. Makes modifying programs easier
5
Q
What are the four types of program maintenance?
A
- Corrective, preventive, adaptive and perfective. (PPAC)
6
Q
What is naming convention?
A
- It is when the name of a variable or a function should match the task or thing that it does
7
Q
What are the four different types of program maintenance?
A
- Naming convention
- Indentation
- Comments
- Sub-programs
8
Q
What is destructive testing?
A
- Deliberately trying to break your program with data that the program wouldn’t expect.
9
Q
What is iterative testing?
A
- Testing carried out on the modules to make sure the program works bit by bit. Testing is repeated until the code meets the desired outcome.
10
Q
Why is iterative testing good?
A
By going through each section individually you can see which section has the error or if the section can work on its own.
11
Q
What is terminal testing?
A
- Testing carried out at the end of the program to ensure that it works as a whole program and not just the modules you create.
12
Q
What is modular testing?
A
- Same as iterative
13
Q
What is the name of the test where you focus on what goes in and out of the program?
A
Black box testing
14
Q
What is the name of the test that focuses on what happens inside the program?
A
White box testing
