The traceability matrix allows you visualise the dependencies between 
requirements, 
change requests, 
test cases and other other assets in your 
project.
The image on the right shows an example of a traceability matrix. The first column and the first row shows a change request (86) and a list of requirements. The arrows shows the dependencies between two items.
For example, the intersection between SEC_01 in the second row and SEC_01.1 in the second column shows a green arrow indicating that requirement SEC_01.1 is dependent on SEC_01.
To add a new dependency you can just click on an empty cell. You cannot created a looping dependency so some cells will be inactive. For example say you had three requirements A, B and C. Say you’ve added a dependency from A to B and also from B to C, then you cannot add a dependency from C to A.
CSV or 
Excel. These exports will include the whole matrix, regardless of the number of columns and rows you’ve set in the display options (see below).
risks, 
issues, 
features, change requests, requirements and test cases. You can also set the maximum number of columns and rows to display. Click on the “Update matrix” button to update the traceability matrix once you’ve changed the display options.
requirements, 
change requests, 
test cases and other other assets in your 
project.
The image on the right shows an example of a traceability matrix. The first column and the first row shows a change request (86) and a list of requirements. The arrows shows the dependencies between two items.
For example, the intersection between SEC_01 in the second row and SEC_01.1 in the second column shows a green arrow indicating that requirement SEC_01.1 is dependent on SEC_01.
To add a new dependency you can just click on an empty cell. You cannot created a looping dependency so some cells will be inactive. For example say you had three requirements A, B and C. Say you’ve added a dependency from A to B and also from B to C, then you cannot add a dependency from C to A.
Scrolling
If you have more columns or rows than configured in the display options (see below) then buttons will be displayed to scroll through the matrix, either a page at a time or to the back or front of the matrix.Change
The red arrows in the traceability matrix indicate that the parent item has changed. For example SEC_02 has changed and the arrows to SEC_02.1 and SEC_02.2 are both red. The test case TC_03 in turn is dependent on SEC_02.1 and SEC_02.2 so its arrows have also been flagged red. This allows you to see where there was a change that has not been propagated yet. Once you have updated the dependent requirements you can clear the flags by clicking on the red arrow.Export
Directly below the traceability matrix are two buttons to export to matrix to
CSV or 
Excel. These exports will include the whole matrix, regardless of the number of columns and rows you’ve set in the display options (see below).
Display options
Below the traceability matrix you have options to change what is displayed on the horizontal and on the vertical axis. You can include
risks, 
issues, 
features, change requests, requirements and test cases. You can also set the maximum number of columns and rows to display. Click on the “Update matrix” button to update the traceability matrix once you’ve changed the display options.