when requirements are traced to test cases and vice versa 
it is called bidirectional traceability.

any suggestions welcome

* Ability to trace both backward and forward
* When requirements can be traced by code and code can be 
traced by requirement
* Done througtout the development process
* To ensure that all the requirements are implemented in 
the system

Ability to trace both backward and forward
* When requirements can be traced by code and code can be 
traced by requirement
* Done througtout the development process
* To ensure that all the requirements are implemented in 
the system

Agreed but the definition of Bi-directional Traceability is 
that both vertical and Horizontal traceability is 
maintained.

Horizontal Traceability is the traceability of requiremenst 
across all the development phases Req-> Design->Module Spec-
>Unit Testing-> Module testing->Integration testing-> 
Systems testing

Vertical traceability is the traceability of the 
requirements across modules or other requirements in the 
product.This may not apply to all project / products 
because this requiremenst was an outcome of having large 
projects such as the ones executed by NASA and US Military.

Rashmi - i think you need to relook at the definition