software testing

Software Testing
• Software testing is the process of evaluation a software
item to detect differences between given input and
expected output. Also to assess the feature ofA software
item.
• Software testing is a process that should be done during
the development process.
• In other words software testing is a verification and
validation process.

Software Testing
Verification
• Verification is the process to
make sure the product satisfies
the conditions imposed at the
start of the development phase.
In other words, to make sure the
product behaves the way we
want it to.
Validation
• Validation is the process to make
sure the product satisfies the
specified requirements at the end
of the development phase. In
other words, to make sure the
product is built as per customer
requirements.

Basics of software testing
BlackboxTesting
• Black box testing is a testing
technique that ignores the
internal mechanism of the system
and focuses on the output
generated against any input and
execution of the system. It is also
called functional testing.
WhiteboxTesting
• White box testing is a testing
technique that takes into account
the internal mechanism of a
system. It is also called structural
testing and glass box testing.
• Black box testing is often used for
validation and white box testing is
often used for verification.

software testing categories
StaticTesting
• It can test and find defects without
executing code. StaticTesting is
done during verification process.
This testing includes reviewing of
the documents (including source
code) and static analysis.This is
useful and cost effective way of
testing. For example:
reviewing, walkthrough, inspection,
etc.
DynamicTesting:
• In dynamic testing the software
code is executed to demonstrate
the result of running tests. It’s
done during validation process.
For example: unit
testing, integration
testing, system testing, etc.

Types of testing
• There are many types of testing like
• UnitTesting
• IntegrationTesting
• FunctionalTesting
• SystemTesting
• StressTesting
• PerformanceTesting
• UsabilityTesting
• AcceptanceTesting
• RegressionTesting
• BetaTesting

• UnitTesting
• Unit testing is the testing of an individual unit or group of related
units. It falls under the class of white box testing. It is often done
by the programmer to test that the unit he/she has implemented
is producing expected output against given input.
• IntegrationTesting
• Integration testing is testing in which a group of components are
combined to produce output. Also, the interaction between
software and hardware is tested in integration testing if software
and hardware components have any relation. It may fall under
both white box testing and black box testing.
• FunctionalTesting
• Functional testing is the testing to ensure that the specified
functionality required in the system requirements works. It falls
under the class of black box testing.

• SystemTesting
• System testing is the testing to ensure that by putting the
software in different environments (e.g., Operating Systems) it
still works. System testing is done with full system
implementation and environment. It falls under the class of black
box testing.
• StressTesting
• Stress testing is the testing to evaluate how system behaves
under unfavorable conditions.Testing is conducted at beyond
limits of the specifications. It falls under the class of black box
testing.
• PerformanceTesting
• Performance testing is the testing to assess the speed and
effectiveness of the system and to make sure it is generating
results within a specified time as in performance requirements. It
falls under the class of black box testing.

• UsabilityTesting
• Usability testing is performed to the perspective of the client, to
evaluate how the GUI is user-friendly? How easily can the client
learn? After learning how to use, how proficiently can the client
perform? How pleasing is it to use its design?This falls under the
class of black box testing.
• AcceptanceTesting
• Acceptance testing is often done by the customer to ensure that
the delivered product meets the requirements and works as the
customer expected. It falls under the class of black box testing.
• RegressionTesting
• Regression testing is the testing after modification of a system,
component, or a group of related units to ensure that the
modification is working correctly and is not damaging or
imposing other modules to produce unexpected results. It falls
under the class of black box testing.

• BetaTesting
• Beta testing is the testing which is done by end users, a team
outside development, or publicly releasing full pre-version of the
product which is known as beta version.The aim of beta testing
is to cover unexpected errors. It falls under the class of black box
testing.

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software testing

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