When creating a test automation infrastructure, one of the main considerations for the buildup process is its efficiency. A main cause and method for improvement might come from reuse of test automation artifacts. Following that, one may ask “To what extent can the test automation artifacts be re-used?”. In this paper we present a model and test automation architecture for achieving such a goal. Repository Driven Test Automation (RDTA) is a conceptual approach for the buildup process of test automation infrastructure that employs reuse of testing artifacts. This paper discusses aspects of reuse of software test automation artifacts on various levels. Then, practical implications and adjustments arising from the implementation of this new paradigm are discussed. The proposed concept is documented by a case study in an international innovative computer hardware manufacturer, one of leaders in the market. The documented results are significant and confirm the validity of the concept.