Types of Traceability Matrix
There are 3 types of traceability matrix:
- Forward traceability matrix
- Backward traceability matrix
- Bi-directional traceability matrix
1. Forward traceability matrix:
In the forward traceability matrix, we mapped the requirements with the test cases. Here we can verify that all requirements are covered in test cases and no functionality is missing in test cases. It helps you to ensure that all the requirements available in the SRS/ Sprint backlog can be traced back to test cases designed by the testers. It is used to check whether the project progresses in the right direction.
Forward traceability matrix
In forwarding the traceability matrix:
Rows = Requirement ID
Column = Test case ID
2. Backward traceability matrix:
In the backward traceability matrix, we mapped the test cases with the requirements. Here we can verify that no extra test case is added which is not required as per our requirements. It helps you to ensure that any test cases that you have designed can be traced back to the requirements or user stories, and you are not extending the scope of the work by just creating additional test cases that can not be mapped to the requirement. The backward traceability matrix is also known as the reverse traceability matrix.
Backward traceability matrix
In the Excelbackward traceability matrix:
Rows = Test cases ID
Column = Requirement ID
3. Bi-directional traceability matrix:
A bi-directional traceability matrix is a combination of a forward traceability matrix and a backward traceability matrix. Here we verify the requirements and test cases in both ways.
Bi-directional traceability matrix
Bi-directional traceability matrix = Forward traceability matrix + Backward traceability matrix
Requirements Traceability Matrix – RTM
Here we will discuss the Requirement Traceability Matrix (RTM). The following 8 topics will be discussed:
Table of Content
- What is Requirement Traceability Matrix (RTM)?
- Why is Requirement Traceability Matrix (RTM) Important?
- Parameters of Requirement Traceability Matrix (RTM):
- Types of Traceability Matrix:
- Who Needs Requirement Traceability Matrix (RTM)?
- Requirement Traceability Matrix (RTM) Template:
Let’s start discussing each of these topics in detail.