test harness is a collection of software and test data configured to test a program unit by running it under varying conditions and monitor its behavior and outputs. It has two main parts namely Test execution engine and the test script repository

TEST BED is a platform for experimentation for large development projects. They allow rigorous testing of scientific theories and new technologiescript repository

Ans:-

Test bed : An execution environment configured for testing as hardware software networks etc.

Test harness : A programe or test tool used to execute a test. Also known as test driver.

test harness:it indicates readyness to start test execution

test harness test environment+test bed

test environment--->required hardware and software components for the test execution...

test bed---->required test cases which are ready for execution.

Test Bed: An execution environment configured for testing. May consist of specific hardware OS network topology configuration of the product under test other application or system software etc. The Test Plan for a project should enumerated the test beds(s) to be used

Test Harness: A program or test tool used to execute a tests. Also known as a Test Driver.

sudhakar kolla.

If you have doubts can ask me.

My Email:kollasudhakar2005@yahoo.co.in.

My Number:09819859346.