What is the software testing?
Software tests are defined as an activity to verify whether the actual results match the expected results and to ensure that the program system is free from defects. The implementation of a program component or a system component involves evaluating one or more important properties.
Software tests also help identify errors, gaps, or missing requirements versus actual requirements. This can be done manually or by using automated tools. Some prefer to say software tests such as white box testing and black box testing.
In simple terms, the software test means checking the application under test (AUT).
What is the importance of software testing?
Tests are important because software errors can be expensive or even dangerous. Program errors can cause financial and human losses, and history is full of such examples.
In April 2015, Bloomberg Station in London was disrupted by a software problem affecting more than 300,000 traders in the financial markets. Forced the government to postpone the sale of debts worth 3 billion pounds.
Nissan cars need to remember more than 1 million cars due to the program’s failure to detect sensory airbags. Two incidents were reported due to program failure.
Starbucks was forced to shut down about 60 per cent of stores in the United States and Canada because of the program’s failure in the POS system. At one point, the store was offering free coffee, where they could not process the transaction.
Some Amazon external retailers saw their product price fall to 1 pixel due to software failure. They left with heavy losses.
The vulnerability in Window 10. This error allows users to escape from security environments through failover in the win32k system.
In 2015, the F-35 fighter aircraft was the victim of a program error, preventing the detection of targets correctly.
China Airbus A300 crashed due to a program error on April 26, 1994, killing 264 innocent
In 1985, Canada’s Therac-25 radiation therapy machine was disrupted by a program error and lethal doses of radiation were given to patients, resulting in the death of 3 people and the injury of three others seriously.
In April 1999, a program error resulted in the failure to launch a $ 1.2 billion military satellite, the most expensive accident in history
In May 1996, a program error resulted in the addition of $ 920 million to bank accounts of 823 customers of a large US bank.
Types of software testing
Typical tests are classified into three categories.
Non-functional tests or performance tests
Maintenance (Regression and Maintenance)
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