Klausurschwanger

Question 1

Testing activities

Answer 1

• Test Design (Criterion Based and Human Based)
• Test Automation
• Test Execution
• Test Evaluation

Question 2

Mapping from Terminal Symbol Coverage and Production Coverage to graph - based coverage criteria

Answer 2

• TSC to NC

- PDC to EC

Question 3

Software Failure, Software Error, Software Fault, map with Reachability, Infection, Propagation

Answer 3

Tests reaches Software Fault, this infects the internal state - which is therefore incorrect (Software Error). This propegates to incorrect external behavior - software failure.

Question 4

Rule of Thumb in resolving defects

Answer 4

1 x Specification
10 x Implementation
100 x Testing
1000 x Production

Question 5

Difference interface based approach vs. functionality based approach?

Answer 5

Both part of IDM:
Interface Based:
- Developing characteristics based on individual input parameters
- easier to concept
- more tests
Functionality Based:
- Developing characteristics based on behavioural view 
- more complex to design tests
- fewer tests

Question 6

What is a subpath / detour?

Answer 6

A subpath has same edges.

Detour has got same edges.

Question 7

Software observability?

Answer 7

how easy it is to observe the behavior of a program in terms of its outputs, effects on the environment and other hardware and software components.

Question 8

Software controllability?

Answer 8

how easy it is to provide a program with the needed inputs, in terms of values, operations, and behaviors

Question 9

What does data abstraction lead to?

Answer 9

Data abstraction reduces controllability and observability

Question 10

Software Testability?

Answer 10

■ program understandability
■ program observability
■ program traceability
■ program controllability
■ program test support capability

Question 11

What is a simple path?

Answer 11

A simple path is a path where no node appears more than once, except possibly the first and last one.

Question 12

What is a prime path?

Answer 12

A prime path is a simple path that is not subsumed by a proper other simple path?

Question 13

What dies active / inactive clause coverage mean?

Answer 13

In active clause coverage, the major clause is the determining factor for the value of the predicate. In inactive cc, the major clause does not determine the predicate.

Question 14

What is major clause?

Answer 14

The major clause is the determining factor for the value of the predicate.

Question 15

Three structures for test criteria, test requirements?

Answer 15

• SW Observability
• SW Controllability
• SW Testability