Topic: TestDirector - requirement

The 676 limit comes from the way TD stores the relationship between a requirement and its

children, and, more precisely, the ordering of the children.
There is a field named RQ_REQ_PATH in the REQ table that is built as follows :
The first requirement as a value of AA.
The first child for that requirement has a value of AAAA.
The second child has a value of AAAB.
The 676th child has a value of AAZZ.
The first sibling of the first requirement has a value of AB.

Now, if I want to get the first requirement and all its children, I can select on

RQ_REQ_PATH LIKE 'AA%' and order on RQ_REQ_PATH.

So, the maximum number of requirements is not 676 : this is the maximum number of children

for a requirement. But you can have 676 reqs at the first level, then, each of these reqs

can have 676 children (you then have 456976 reqs), each of these children can have 676

children, and so on.

In QC90, the coding is made on three letters instead of 2, which pushes the limit to

26*26*26 = 17576 children for each req.