We present our Multi Point Of vieW Evaluation Refinement Studio (MPOWERS), an application framework for Spoken Dialogue System evaluation that implements design conventions in a user-friendly interface. It ensures that all evaluator-users manipulate the on a unique shared corpus of data with a shared set of parameters to design and retrieve their evaluations. It therefore answers both the need for convergence among the evaluation practices and the consideration of several analytical points of view addressed by the evaluators involved in Spoken Dialogue System projects. After introducing the system architecture, we argue the solution’s added value in supporting a both data-driven and goal-driven process. We conclude with future works and perspectives of improvement upheld by human processes.