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Questions and Answers

What type of tests would you conduct to ensure that a system can be easily maintained?

Recovery tests

Maintainability tests (correct)

Configuration tests

Reliability tests

What is the primary goal of back-up and recovery tests?

To test system reliability

To ensure data security

To evaluate system performance

To verify that data can be restored in case of failure (correct)

What type of testing would you conduct to ensure that a system works correctly in different hardware or software environments?

Documentation tests

Installation tests

Configuration tests (correct)

Reliability tests

What is the purpose of documentation testing?

To verify that documentation is accurate and usable Signup and view all the answers

What type of testing would you conduct to ensure that a system can be easily adapted to changing requirements?

Adaptability tests Signup and view all the answers

What is the primary goal of reliability testing?

To verify that a system will be reliable Signup and view all the answers

What is the motto of acceptance testing?

If you don't have patience to test the system, the system will surely test your patience Signup and view all the answers

What is the primary focus of maintenance testing?

To preserve quality Signup and view all the answers

What is the difference between development testing and maintenance testing?

Sequence of testing Signup and view all the answers

In integration testing, what is tested in the small?

Individual components Signup and view all the answers

What should be the approach when dealing with poor or missing specifications?

Document assumptions and improve the situation Signup and view all the answers

What should be tested in maintenance testing?

New or changed code, and impacted areas Signup and view all the answers

What is the primary goal of breadth testing in maintenance testing?

To establish overall confidence Signup and view all the answers

What determines the extent of testing in maintenance testing?

The answer is 'it depends' Signup and view all the answers

What is the primary focus of integration testing in the small?

Communication between components Signup and view all the answers

What is the main advantage of the big-bang integration approach?

It saves time by combining all components at once Signup and view all the answers

Which type of testing focuses on ensuring that the system meets the user's requirements?

Acceptance testing Signup and view all the answers

What is the primary goal of acceptance testing?

To ensure that the system meets the user's requirements Signup and view all the answers

Which type of testing is performed after the system has been released to identify and fix defects?

Maintenance testing Signup and view all the answers

What is the main difference between integration testing in the small and integration testing in the large?

The scope of the testing Signup and view all the answers

What is the primary focus of system testing?

Non-functional testing of the entire system Signup and view all the answers

What is the main benefit of incremental integration strategy?

It allows for early detection of integration errors Signup and view all the answers

Study Notes

Component Testing

Component testing is a white box test design technique
Techniques used include:
Statement testing
Branch / Decision testing
Data flow testing
Branch condition testing
Branch condition combination testing
Modified condition decision testing
LCSAJ testing

Integration Testing in the Small

Involves testing more than one component
Focuses on communication between components
Tests what the set can perform that is not possible individually
Includes non-functional aspects if possible
Integration strategy: big-bang vs incremental (top-down, bottom-up, functional)

Big-Bang Integration

Involves combining all components at once
Not recommended as it may save time but can be risky

Acceptance Testing

Main motto: "If you don't have patience to test the system, the system will surely test your patience"
Focuses on system testing (non-functional and functional)

Maintenance Testing

Involves testing to preserve quality
Done top-down, unlike development testing which is done bottom-up
Test data is live profile
Types of tests: breadth tests, depth tests, and regression testing

What to Test in Maintenance Testing

Test any new or changed code
Conduct impact analysis: determine what could be impacted, how important is a fault in the impacted area, and prioritize tests accordingly

Poor or Missing Specifications

Consider what the system should do by talking with users
Document assumptions and ensure others review them
Improve the current situation and document what is known
Track cost of working with poor specifications to make a business case for better specifications

Security Tests

Includes testing:
Passwords
Encryption
Hardware permission devices
Levels of access to information
Authorisation
Covert channels
Physical security

Configuration and Installation

Configuration tests:
Different hardware or software environment
Configuration of the system itself
Upgrade paths
Installation tests:
Distribution (CD, network, etc.) and timings
Physical aspects: electromagnetic fields, heat, humidity, motion, chemicals, power supplies
Uninstall (removing installation)

Reliability and Qualities

Reliability:
Means Time Between Failures (MTBF)
Reliability growth models
Other qualities:
Maintainability
Portability
Adaptability

Back-up and Recovery

Back-ups:
Computer functions
Manual procedures (e.g., where are tapes stored)
Recovery:
Real test of back-up
Manual procedures unfamiliar
Should be regularly rehearsed
Documentation should be detailed, clear, and thorough

Documentation Testing

Documentation review:
Check for accuracy against other documents
Gain consensus about content
Documentation exists in the right format
Documentation tests:
Is it usable?
Does it work?

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