Maintainability And Testing

Question 1

4 things to make a program maintainable

Answer 1

• Comments allow different programmers to investigate and understand the code.
• Indentation creates a layered approach to the code, showing that bits of code that line up with each other link together.
• Sub-Programs make the program easier to read and understand
• Naming Conventions help programmers understand the code at a quick glance e.g separate words in identifiers using an underscore

Question 2

Testing

Answer 2

The process of ensuring a solution works correctly and the way it should work.

Question 3

What does testing allow us to do?

Answer 3

• Find faults in programs which can be rectified

Question 4

Iterative Testing -

Answer 4

• Involves testing a solution throughout its development.

Question 5

Advantage of iterative testing

Answer 5

• Allows us to test small sections of code one bit at a time.
• This means it makes it easier to spot errors and fix them

Question 6

Disadvantages of iterative testing

Answer 6

• Can take up time in development

Question 7

Terminal/Final Testing

Answer 7

• Involves testing the whole solution once the development is complete.

Question 8

Advantage(s) of Terminal Testing

Answer 8

• Saves time during development

Question 9

Disadvantage of terminal testing

Answer 9

• Makes it difficult to spot errors.

Question 10

Example of invalid data

Answer 10

DOB as a day in future

Question 11

Example of boundary data

Answer 11

Number between 1 and 100 and user inputs 100