Requirements Trace-ability Matrix (RTM)

In the previous post I discussed the software Testing life cycle and in the design phase of the STLC a requirements trace-ability matrix is designed.
So let's discuss what requirements trace-ability matrix is.

Requirements Trace-ability Matrix:

The Requirements Trace-ability Matrix (RTM) is a document that links requirements throughout the validation process. The purpose of the Requirements Trace-ability Matrix is to ensure that all requirements defined for a system are tested in the test protocols.