The improvement of computational systems has been based on Moore's law and Dennard's scale, but for more than a decade it has started to fall to a standstill. To maintain the improvement new technologies are proposed, this has established a Post-Moore era. Currently there are different methodologies to evaluate emerging devices and technologies, but the results of these methodologies end up being particular solutions. This paper presents a methodology that can evaluate Post-Moore devices or technologies in an agile way, characterizing an application, choosing a device that meets its needs, selecting tests and parameters that are executed to meet the objectives set by the methodology. The results show how to evaluate the energy efficiency of these new technologies, but the scope of the methodology can cover other needs.