This article presents the automated validation test approach used by Alcatel Transport Automation Systems in Spain for the
validation of a product line of railway traffic control systems. The strategy adopted by the validation team bases its success
on two key points: a methodology, which defines an operational workflow from the requirements to the execution of tests; and
the reusability for the different members of the product line.
The work of Juan C. Dueñas has been partially developed in the the project “Engineering Software Architectures, Processes
and Platforms for System-Families” (ESAPS) ITEA 99005/Eureka 2023, and has also been partially funded by Spanish Ministerio
de Ciencia y Tecnología, under grant TIC1999-1782-CE.