03 Types of Testing

Question 1

Defect Resolution

Answer 1

• Actions agreed upon and impact/priority determined.
• Defect logging and tracking
• Consistent defect intepretation and tracking
• Timely defect reporting (used to monitor and control projects)
• Learn from past problem (locations in the code, defect types, developer issues)
• Developer Issues: Conceptual mistakes, unfamilitarity with domain, inexperience with methods.

Question 1

Ad-Hoc Testing

Answer 1

“Run and Observe”
Implicit checklists may be involved.

Question 2

Ad-Hoc Testing Drawbacks

Answer 2

Lack of structure
Likely to Miss
Likely to repeat oneself.
In general, the whole process is hard to repeat.

Question 3

Testing Checklists:

Answer 3

Systematics Testing
Functional
Implementation

Question 4

Sensitize Test Cases

Answer 4

Defining specifc input variables and associated values to exercise certain parts of the program.

Question 5

Paritition Based Testing

Answer 5

Member in equivalence class are treated “equivalent”&raquo_space; Defining meaningful partitions.

Sampling from partitioned subsets for different types of partitions.

Coverage of partitions: uniform.

Question 6

Different types of partitions

Answer 6

Pure membership based partitions.

Properties/relations used in definitions.

Combinations

Question 7

Reliability:

Answer 7

Probability of failure-free operation for a specfic period or a given set of input under a specific environment

Question 8

Reliability System Quality:

Answer 8

Mean time to Failure (MTTF) : how often does the thing stop working.

Mean time to Repair (MTTR): Once it stops working, how long does it take to fix.

Question 9

UBST

Answer 9

Usage Based Statistical Testing

Ensure reliability (Customer view of quality)
Tests Actual Usage and info.
Captures in OPs.
Simulated in testing environment.

Question 10

Operational Profile

Answer 10

A list of disjoin set of operations and their assoicated probabilities of occurrence.
Quantitative characterization of the way a system will be used.
Generate/execute test cases for UBST.
Realistic reliability assessment - development decisions/priorites.

Question 11

Coverage-Based Testing

Answer 11

Systematic testing based on formal models and techniques.
Testing models based on internal details or external expectations.
Coverage measures defined for models - Testing measured by coveraged goals.