Functional testing

1. Siddharth Pani
Roll No – E 51
PRN – 15020441259

2.  Functional testing is a quality assurance (QA) process and
a type of black-box testing that bases its test cases on the
specifications of the software component under test.
 Steps in Functional testing
◦ The identification of core functions that the software package is
designed to perform
◦ The creation of input data based on the function's specifications
◦ The resolution of output based on the function's specifications
◦ The execution of the test case
◦ The differentiation of actual and expected outputs
◦ To verify whether the application works as per the client’s
requirement.

3.  Unit Testing - is the testing of individual software modules
or components that make up an application or system
 Integration Testing - The Integration testing part of a testing
methodology is the testing of the different modules/components
that have been successfully unit tested when integrated together to
perform specific tasks and activities
 System Testing - The system testing part of a testing
methodology involves testing the entire system for errors and bugs
 Acceptance Testing - is the final phase of functional software
testing and involves making sure that all the product/project
requirements have been met and that the end-users and customers
have tested the system to make sure it operates as expected
and meets all their defined requirements

4.  Functional testing is a business prerequisite for all
projects – new, short term or long term.
 In today's competitive atmosphere companies need
to improve the effectiveness and efficiency of
functional testing.
 By introducing testing early in the software
development life cycle (SDLC) it is easier to identify
defects at the outset.

5.  This can be achieved by using testing techniques
and tools such as
◦ requirements profiling and validation
◦ risk-based testing
◦ model-based testing
◦ automated test design
◦ pre-packaged domain-based scenario suite
◦ and dynamic test planning and scheduling.
• Having a case generator helps in generating cases
from business process libraries

6.  functional testing based on risk analysis
methodology will ensure vast test coverage
and helps in discovering faults in the early
phases
 IP-based solutions and domain accelerators
enhance productivity and enable reuse
 Well-defined engineering and project
management processes save costs and
time.