Testing and Documenting Solutions

Question 1

What should documentation at each stage of testing include?

Answer 1

Outline of any testing done
Results
Any errors found
Details on how the errors were corrected

Question 2

What is an advantage of component testing?

Answer 2

If combining the subroutines, if mistakes are in some subroutines, errors may interact with each other to give unpredictable results

Question 3

What is a stub?

Answer 3

Dummy function/procedure used in place of one still to be written

Question 4

When are stubs used?

Answer 4

When there needs to be some code present to indicate a subprogram is being called

Question 5

What are drivers?

Answer 5

Piece of code designed to test a function/procedure which has been written but the rest of the code has not

Question 6

Is this a driver or a stub?
PROCEDURE sort(numbers)
print(“Sorting Numbers”)
END PROCEDURE

Answer 6

Stub

Question 7

What is integration testing?

Answer 7

A stage of testing where modules are tested together as part of a unit, form of alpha testing, carried out by member of development team

Question 8

What should an integration test plan identify?

Answer 8

Original Software Specification
Test documentation from component testing stage
List of test data to be used
Conditions that must be in place before testing starts
What constitutes a successful test

Question 9

What are the advantages of integration testing?

Answer 9

Tests how modules work together
Tests features impossible to test at module level

Question 10

What type of testing is integration testing?

Answer 10

Alpha testing

Question 11

What should the flow of data be tested for in integration testing?

Answer 11

Data Integrity

Question 12

What is acceptance testing?

Answer 12

Testing done by client or potential customers

Question 13

What is the end result of acceptance testing?

Answer 13

Client accepts the delivery of software and checks it is fit for purpose

Question 14

What are the benefits of acceptance testing?

Answer 14

• No unintentional bias
• No assumptions of novice understanding
• Can spot for un-noticed errors

Question 15

Who do commercial companies release beta versions to?

Answer 15

Computer Journalists

Current Users of previous versions

Question 16

What do the users get for testing beta versions?

Answer 16

Reduced cost of software

Earlier versions of software

Question 17

What is an advantage of releasing beta versions to selected members of the public?

Answer 17

Gain valuable information on bugs and can fix them before final release

Question 18

What is usability testing?

Answer 18

Type of testing designed to ensure software is as easy to use as possible

Question 19

What are the 6 criteria for usability testing?

Answer 19

Appropriate
Customisable
Accessible
Contrallable
Helpful 
Consistent

Question 20

How does a developer make a product appropriate?

Answer 20

Design it with the user in mind

Question 21

What is Skeuomorphism?

Answer 21

Interfaces trying to mimic physical counterparts

Question 22

Give an example of skeuomorphism

Answer 22

Trash can for deleting files

Question 23

How can an interface be customisable?

Answer 23

If it can be changed to suit needs of user

Question 24

Give an example of how an interface be customisable?

Answer 24

Shortcut keys
Frequently used screens
Regional differences

Question 25

What makes an interface controllable?

Answer 25

If it has the option of undoing critical operations

Question 26

What makes an interface helpful?

Answer 26

If it provides help on request

Documentation should be comprehensive and avaliable on request

Question 27

How can an interface be consistent?

Answer 27

If menus are grouped together logically

Question 28

Describe how pausing
the execution of the code can be used to find
errors

Answer 28

• Can inspect contents of variables to check if they contain expected values
• Can localize the area where the code stops working/responding

Question 29

Explain the relevance of component testing in a situation where a sort is being coded and then integrated into a large program and describe how it could be carried out

Answer 29

Can be used to make sure that it works correctly being it is integrated within the larger application
Should write use a stub or driver to activate the subprogram and pass parameter values to it.
A set of test data should be created and expected output should be calculated