Week 11

Question 0

Why do we test?

Answer 0

There are 1-3 bugs for every 100 instructions in code. The testing process it’s very important to determine if any defects exist.

Question 1

What are the steps in a physical database design?

Answer 1

1. Change entities to tables or files
2. Change attributes to fields
3. Add primary keys
4. Add foreign keys
5. System related components (system related tables and fields)

Question 2

Draw the V model of testing

Answer 2

Business case
Requirement
Systems spec
System design
Module design
Module
Module/unit test
Interface/integration test
System test
User acceptance test
Release test

Question 3

Describe unit testing

Answer 3

Unit testing consists of testing individual modules of code before integration with other software.

Question 4

Describe the integration test

Answer 4

The integration test tests the behavior of a group of modules.
Errors can include:
– Interface incompatibility
– Incorrect parameter values
– Runtime exceptions
– Unexpected state directions

Question 5

Describe the user acceptance test

Answer 5

The user acceptance test consists of alpha testing which is performed by users to ensure they except the system And beta testing where users monitor for errors or needed improvements.

Question 6

Describe the system test

Answer 6

The system test tests the behavior of the entire system. It is often used to check if a COTS interacts properly with any custom system changes

Question 7

What are the three major elements of a test case?

Answer 7

1. Conditions
2. Parameters
3. Expected results

Question 8

Describe the V model of testing

Answer 8

Testing of the product is planned in parallel with the corresponding phase of development.